use a wii and convert it to hdmi (from component, obv). i had the gc component cables, and the wii for some reason, its output just changes over to hdmi much more flawlessly. yes, i'm talking about one of those cheap "made in china" boxes. it makes the wii look and sound digital and format incredibly well on an hdtv.
wii2hdmi on the other hand...i tried 2 or 3 different brands of those. it is not the same as a box. it did nothing to upgrade the audio or visuals.