Any Playstation controller since I like fighters and hack and slash games. The controller, especially the PS2 iteration, is perfect for the aforementioned genres. if I had to choose one I'd say PS4 since I find it seems crafted for more than just those 2 genres.
I'm not a huge fan of the NGC controller, but I find it PERFECT for Smash Bros. Melee - which is among my favorite titles - so it's definitely up there for me. Not very durable though.
That is all ....
Playstation = The Beast from the East
Sony + Nintendo = WIN! PS3 + PSV + PS4 + Wii U + 3DS