PS3

Pros:
Better console
HDD standard

Cons:
Sucky controller (IMO)

360:

Pros:
Best controller

Cons:
Die-box
HDD not standard

To me 360 controller is the best this gen. It comfortable, triggers feel just right, analog placement didn't hurt my thumb plus the inclusion of the "R1 (RB)" and "L1(LB)" button.

Now I haven't touched a sixaxis or dual shock 3 but it looks kinda the same as last gen (with triggers). I had some bad times with the DS 2 (slipped thumbs, awkward analog placement), so I'm basing my thoughts on this.

It's not just FPS, most of next gen games utilizes the use of two analog sticks (one for movement, the other for camera for example), so IMO 360 controller is the best for this.

PS controllers have great d-pads but those are for last gen 2D fighter games, those games are near extinct. In short, if I ever get a PS3, it'd be cool to use 360 controller while playing its games.

Well, I don't look at the controller much when I'm playing ! You could be right about GH3 and PES because I didn't play those kinda games. I'm noticing a trend this gen where both analog sticks are being used in the videogame genre that I like so 360 controller is my choice.