XBLA ports are nice 'cos I'm an idiot and can't figure out the best way to make these games look. Finally got some video settings in SW that don't look like total ass, but it's not as clean as Duke 3D and id games look on XBLA. And I don't mean smooth; I like the pixely look, but clear and not garbled.
Blood on GOG looked nice, though. Didn't require much tweaking thanks to in-game video options.