The Wii does not look better on a SDTV. I have played the Wii on both so I know. Of course I use the correct cables unlike the OP.
As someone else said, some HDTVs are better than others at displaying 480i/480p. Some are so good that you'll hardly see any difference between native 480p and upscaled 480p.
My Mario Kart Wii friend code: 2707-1866-0957







