I'm playing Xenoblade on Wii with component cables and while not as good as on a high end PC with Dolphin, playing with component makes a really big difference over composite. UI is totally crisp, couldn't see much difference to when I tried on Dolphin (I tried on my i5 MBP @720p but it isn't quite up to it, it ran ok in game, but sound chugged and cutscenes ran badly), of course everything else looks a lot worse but because I don't have any other option I'm dealing with it fine, I'm still amazed at some of the technical feats they achieved on Wii hardware.