I've been using the dualshock for over a decade, so obviously the PS3 controller. The xbox 360 controller isn't bad but I do have some gripes, one being the d-pad; it's not as responsive as I'd like for fighting games or games where I need precision if the d-pad maybe also controls my movement (puzzle games, etc.). The bumpers and triggers sometimes annoy me, mainly because let's say I'm playing Call of Duty on the PS3.
On PS3, the trigger is R1, which is an extremely easy button to tap fast if you're using a semi automatic, but on the 360, the trigger is the trigger (you know what I mean), and this makes it difficult to accurately and quickly tap the trigger to fire fast. Sometimes you'll think you'll be tapping it fast, but it won't register so instead of firing 10 rapid pistol shots to save your life, you fire maybe 3 disjointed shots that all pathetically miss.
I also prefer a symmetrical layout of the d-pads, but that's probably because I'm so used to the dualshock and I haven't used the 360 controller nearly as much. I'll also include a little PC gaming reference too. So for mouse and keyboard, I seem to like it for RTS games, obviously, and any Valve game. I've played TF2 on both consoles, and on PC and I simply cannot play it on the consoles. Yet a shooter like Call of Duty, I seem to prefer on consoles.
TL;DR - I prefer PS3 controller over 360 controller, and I like keyboard and mouse for any RTS or Valve game.
On PS3, the trigger is R1, which is an extremely easy button to tap fast if you're using a semi automatic, but on the 360, the trigger is the trigger (you know what I mean), and this makes it difficult to accurately and quickly tap the trigger to fire fast. Sometimes you'll think you'll be tapping it fast, but it won't register so instead of firing 10 rapid pistol shots to save your life, you fire maybe 3 disjointed shots that all pathetically miss.
I also prefer a symmetrical layout of the d-pads, but that's probably because I'm so used to the dualshock and I haven't used the 360 controller nearly as much. I'll also include a little PC gaming reference too. So for mouse and keyboard, I seem to like it for RTS games, obviously, and any Valve game. I've played TF2 on both consoles, and on PC and I simply cannot play it on the consoles. Yet a shooter like Call of Duty, I seem to prefer on consoles.
TL;DR - I prefer PS3 controller over 360 controller, and I like keyboard and mouse for any RTS or Valve game.