As some others said.. Just go with the one you sem to like.. I got all 3 also.. And i'm more of a 360 guy.. But that's because i was used to the xbox (original) controller.. And i got used to the feel.. The PS3 controller feels weird
So if you've had a PS2 before, then i would choose PS3.. This comes with the great benefit of free online play
If you've had an xbox before, then i'd go the 360.. Better layout on the menu, online costs does give you some more/better options, and focused more on what it is.. A games console..