Best Console : PS3, particularly the 60GB model I use, since it lets me play PS2 AND PS1 games on it with impunity. And the controller is pretty good too.
Worst Console : Come on, this far in, and no one mentions the infamous Virtual Boy, with it's "IT'LL PUT YOUR EYE OUT, KID" red and black graphics system? Atari 5600 is a close second.
Controllers: I actually liked the PS2 controllers, but the PS3 ones are pretty good too.
Worst controllers: I really didn't like the Xbox controllers myself. But then, I am biased, since I mainly play Sony.