My brother got a Wii for Christmas and while I was originally skeptical of a new nintendo system it won me over. The sports game is extremely fun and addictive. Zelda is amazing. I haven't compared it to the GC version though. The one game i was disappointed in was red steel. The handling of the game wasn't what i expected.
Also if you happen to be an old school gamer you will appreciate being able to get games from Nintendo, SNES, Genesis, Turbo Graphics 16, and the N64. As a side note there are only about 20 or so of these games available right now but they include the original Super Mario Brothers and Legend of Zelda.