In my openion i think its the Germans they always the ones i get kicked from 150ping must mean mega lag to them, have the most ridiculous rules ie the admins are the only ones allowed to go into uncapped flags or use certain vehicles, host the most pistol knife servers/stat padding servers and have the attitude of 9 year old girls.
Im not saying all germans in bf2 are like that but most of them are. Also they use the lamest tactics to win which is pretty funny bunny hopping/Dolphin diving (yes its still possible damn dice since they cant fix a simple thing like that), spray (yea go check a bunch of german people on bf2s notice that they have low accuracy) and car arty like theres no tomarrow