Favourite Controller: Xbox 360 Controller wins hands down. It's ergonomically shaped, the layout makes sense, and it's really comfortable to hold. I have some gripes with it, such as the battery pack on the underside and the dead zones on the xbox 360 analog sticks are larger than the PS3, but those are easily overlooked for it's pros.
Least Favourite Controller: Gamecube. Don't get me wrong, it's a great console with some awesome games, but I feel like I'm playing the game with a controller made out of lego every time I plug it in. The whole feel is really awkward, and although it's similar to the xbox 360, the grips are thinner and the shoulder buttons just don't feel right, and everything on the controller clicks which just makes me shudder. The button layout is really awkward too.