Well, the PS3 version obviously wouldn't have changed much, since its not possible for Dedicated Servers etc on a console. PC Gaming is all about the Dedicated Servers (and the occasional mods/tweaks they run) so IW really screwed over the PC Gamer with the latest version of COD. I'd rather find a decent server and play with 30+ people, get to know some new people, have a good time then this random allotment of playing with 12 people.
Last night, for instance, there were three assclowns on the 'server' I was on. They were being extremely annoying, making loud noises, cursing like a sailor, and things only got worse when some 9 year old came on and tried talking smack too. Normally, this would be the point where we'd "KICK" the annoying players from the server. Oh wait, whats that? There is no admin anymore? You can't even VOTE-TO-KICK some one! Makes the game horrible on the audio side.