As Shinobi says, the Saturn pad is great but it really depends what your playing.
Personally, I use a wired 360 pad.
I've had a 360 for years now so was used to the pad and it made sense to get the same one for my PC.
Works great with every emulator and (with a bit of fiddling) the GTA games (only PC games I tend to play).
 just noticed you didn't want a 360 pad!
well, I like it!
I dont like it entirely because of the godawful Dpad. The rest of the controller is fine.... that Dpad is a travesty.
And very, VERY few games that I play actually need or use analog sticks for anything. .....actually, I cant think of any I own that do, aside from LittleBigPlanet 2. .....yeah, I think that's literally the only one. Oh, wait, Twisted Metal on PS3. That's the other one.
But yeah, everything ELSE needs a non-awful dpad. This can make it really hard to find good controllers.
I wouldnt mind just using the PS3's controller for this, but THAT thing is damn near impossible to get working on a PC. At least, I've never found a good, sane way of doing it.