IMHO, PlayStation 2 had the best library of any console. There are too many games to list, but strong 1st party showings like God of War and Team Ico games coupled with an abundance of outstanding 3rd party games like MGS2, MGS3 and the GTA's made the system so accessable. That and JRPGs were actually both groundbreaking and fun.
I haven't bought many games for my PS3 (even though it is a solid system and no slouch in the game library department either), and I find myself blaming PS2 a lot. Just think of the games I listed and their current generation counterparts and despite what metacritic says, the new games just don't have the soul and fun factor that came with PS2 installments (for me anyway). And don't even get me started on JRPGs failing to coexist with the western market this gen.
PS2 all the way!
