Still think it looks like a really well-produced Fallout 3 mod, which I guess it actually is, but I'm excited for it. For me Fallout 3 was one of the very few games where I wanted to explore every nook and cranny and take on every quest I could find. The promise of more of that is pretty enticing.
Out of the controllers I use to play currently, the Xbox controller is probably my favorite. I like the positions of the joysticks and clicking them in feels pretty good. The buttons and triggers press in a satisfying way, and the whole controller feels pretty substantial in my hands.
Of all time, though, I'd say the N64 controller. Even when I pick it up today with my big adult hands it feels really good to use.