Im a bit of an alcoholic anyway but I love to drink while playing BF2, although, I find BF2 isnt a get drunk and play game, like some others.
Its good up untill 3 or 4 beers, then after that it feels like too much work to concentrate on the game anymore and ill stick on some music or do something else.
I usually drink Stella Artois, fosters, carlsberg and sometimes grolsch. Forsters is like..... ok, but its cheap so that why I drink it. I prefer carlsberg and can get it for the same price but I have to go further to get it Most nights I will drink say 5 - 6 pints of stella, or 6 - 8 pints of either carlsberg or fosters.
About once a month, Ill drink spirits, (to get drunk) either whiskey (teachers or jamesons if im feeling rich) or Ill drink havana club which is a very good tinted rum. And ill usually drink most of a 700cl bottle and feel like shit the next day.
As for the lagers, apart from the ones mentioned above, these ones I dont drink often because they are a little more expensive, my favourites are
Lowenbrau - a german lager, very very good in a bottle, probably my favourite lager - ill be having a few of these over christmas
Carlsberg export (bottle) - pretty damn good aswell.
Grolsch - also good.
Becks - another good german lager with no bullshit inrediants in it (although becks is more expensive then most)
I drink every day, but not usually before 5pm in the evening and depending on when im working.