That's a really hard question. I would say out of current controllers the 360 has it, it really is just a good all around controller (other than the D-Pad). There are other great controllers for many different reasons, but I'm just going to keep it simple and say the 360 controller.
My least favorite controller is probably the Wii Classic Controller or the PS3 SIXAXIS. I love the feel of the Classic Controller and the layout, but I hate the cord at the top and the fact it doesn't have rumble bothers me, still though, it's comfortable. I actually think I like the SIXAXIS less than the Classic Controller because it's just not comfortable, the tilt doesn't feel great, and no rumble. I use to love the Duelshock design, but after holding the Wii Remote and 360 controllers, it's just so uncomfortable. Add on to that the fact it doesn't have rumble and the tilt really doesn't do much for me and you have my least favorite controller.
