Lets do this thing, lets find out what you find the best of the best in Battlefield 2, maps, armies, guns the works. Below is my list, and is how you should write yours out. Starting with guns, assault rifles, then the rest of the gun types. ETC.
Assault Rifles

AK - 47, It's just by far the best in the game, I dont know why but it feels so connective and crispy you just feel the enjoyment, when I play as the Mec Special Forces I always play as the medic so I can use the AK-47, for me it owns the AK-101 because it has better sights and better sounds, and it reloads with the nicest sound ever. Besides its got that "classic" feel to it.
Shotguns

Benelli M4 Super 90, Its like the best shotgun ever because it has the power of the M11-87 but the speed of the DAO-12, I always use this gun while playing Euro Force, however It was a hard choice.
Sniper Rifles

For me, it has to be the M95, it turns what is normaly a fairly weak class into a pilot pwner, and therefor the winner of rounds. People will often say the L96A1 is the best but its clearly not, it just reloads quickly, dont get me wrong I like it, but I would easily choose an m24 over it.
Sub-Machine Guns

This was a hard choice, but after thinking about it, I have to choose the H&K MP-7, it is so fast and uber acurate, and not one shot misses a target, it takes an entire clip, sure, but still...
Carbines

Honestly...is there any other choice but the G36C, that thing is like an assault rifle with tracer bullets, only for the Spec Ops class, I have only been using it for a while but it's my choice for sure, it may have crappy Iron sights but you dont even need to zoom in with this baby!
Light Machine Guns

I know, your going to hate me for this, so do I, but I have to say its the PKM, because you can stop entire squads with it, its very unbalanced.
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FAVOURITE MAP (BF2 + Euro Force)

For me, it has to be Great Wall, because it is like Strike At Karkand, only with China involved, and lots of LOL funny accents being screamed everywhere, and it has an awesome parachute spawn
HATED MAP (BF2 + Euro Force)

Zatar, need I say more? Boring as heck.
FAVOURITE MAP (Special Forces)

For me, it has to be Ghost Town, its quite simply the best map ever created, and for me it is sniping heaven, and the "convoy" provides for some nice shoot outs!
HATED MAP (Special Forces)

Has to be Leviathan, that map is so slow and dull, it does nothing for me, its just a big flag capping race, you cap one flag they cap the one next to it, you go cap that flag, and they cap the flag you capped before that.
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FAVOURITE ARMIES (BF2 + SPECIAL FORCES + EURO FORCE)

For me, the Spetsnaz are the sexiest and coolest army in the entire game, They have a streamlined awesome look, and there Sniper is a work of art, They also have the same weapons the MEC use, so PP-19 and AK-101 ftw lol, mind you I also like the S.A.S.
HATED ARMIES (BF2 + SPECIAL FORCES + EURO FORCE)

The REBELS, there ugly, there pointless and they carry the same weapons the Spetsnaz do, which is dumb, would have been more cool and more realistic if they carried AK-47's, also they have Surge, and that map is pretty boring.
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FAVOURITE AA

Mine has to be the Linebacker, why? Because you can actualy see where your driving, and its turret is like a mini APC. I love it.
FAVOURITE JET

Mine is the SU-30, I like to be a co-pilot and use the tankbuster missiles, with a good pilot I might even get the Jet ribon one day...
FAVOURITE HELICOPTER

Mine is the HIND, I mean hello? Do you seem to forget it has rapid firing missiles? And that it can strafe and fly upside down? It is excelent.
FAVOURITE ARMOR

BMP FTW, a tank that can swim!? = PWN.
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Well I think thats about it, I left a couple things out such as Ground Defence, but meh. Maybe this will prevent all the "WHATS YOUR FAVOURITE THING" threads, anyway you dont have to make your post as detailed as mine, just a basic reply, this will be intresting and maybe Dice will pick up on some things.
Assault Rifles

AK - 47, It's just by far the best in the game, I dont know why but it feels so connective and crispy you just feel the enjoyment, when I play as the Mec Special Forces I always play as the medic so I can use the AK-47, for me it owns the AK-101 because it has better sights and better sounds, and it reloads with the nicest sound ever. Besides its got that "classic" feel to it.
Shotguns

Benelli M4 Super 90, Its like the best shotgun ever because it has the power of the M11-87 but the speed of the DAO-12, I always use this gun while playing Euro Force, however It was a hard choice.
Sniper Rifles

For me, it has to be the M95, it turns what is normaly a fairly weak class into a pilot pwner, and therefor the winner of rounds. People will often say the L96A1 is the best but its clearly not, it just reloads quickly, dont get me wrong I like it, but I would easily choose an m24 over it.
Sub-Machine Guns

This was a hard choice, but after thinking about it, I have to choose the H&K MP-7, it is so fast and uber acurate, and not one shot misses a target, it takes an entire clip, sure, but still...
Carbines

Honestly...is there any other choice but the G36C, that thing is like an assault rifle with tracer bullets, only for the Spec Ops class, I have only been using it for a while but it's my choice for sure, it may have crappy Iron sights but you dont even need to zoom in with this baby!
Light Machine Guns

I know, your going to hate me for this, so do I, but I have to say its the PKM, because you can stop entire squads with it, its very unbalanced.
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FAVOURITE MAP (BF2 + Euro Force)

For me, it has to be Great Wall, because it is like Strike At Karkand, only with China involved, and lots of LOL funny accents being screamed everywhere, and it has an awesome parachute spawn
HATED MAP (BF2 + Euro Force)

Zatar, need I say more? Boring as heck.
FAVOURITE MAP (Special Forces)

For me, it has to be Ghost Town, its quite simply the best map ever created, and for me it is sniping heaven, and the "convoy" provides for some nice shoot outs!
HATED MAP (Special Forces)

Has to be Leviathan, that map is so slow and dull, it does nothing for me, its just a big flag capping race, you cap one flag they cap the one next to it, you go cap that flag, and they cap the flag you capped before that.
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FAVOURITE ARMIES (BF2 + SPECIAL FORCES + EURO FORCE)

For me, the Spetsnaz are the sexiest and coolest army in the entire game, They have a streamlined awesome look, and there Sniper is a work of art, They also have the same weapons the MEC use, so PP-19 and AK-101 ftw lol, mind you I also like the S.A.S.
HATED ARMIES (BF2 + SPECIAL FORCES + EURO FORCE)

The REBELS, there ugly, there pointless and they carry the same weapons the Spetsnaz do, which is dumb, would have been more cool and more realistic if they carried AK-47's, also they have Surge, and that map is pretty boring.
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FAVOURITE AA

Mine has to be the Linebacker, why? Because you can actualy see where your driving, and its turret is like a mini APC. I love it.
FAVOURITE JET

Mine is the SU-30, I like to be a co-pilot and use the tankbuster missiles, with a good pilot I might even get the Jet ribon one day...
FAVOURITE HELICOPTER

Mine is the HIND, I mean hello? Do you seem to forget it has rapid firing missiles? And that it can strafe and fly upside down? It is excelent.
FAVOURITE ARMOR

BMP FTW, a tank that can swim!? = PWN.
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Well I think thats about it, I left a couple things out such as Ground Defence, but meh. Maybe this will prevent all the "WHATS YOUR FAVOURITE THING" threads, anyway you dont have to make your post as detailed as mine, just a basic reply, this will be intresting and maybe Dice will pick up on some things.