Decent minigame collection, but inferior to Wii-Play
It's a bad thing because, of the two minigame collections Nintendo is giving away this Christmas with its hadware, this is the worse one, and US Wii owners don't even have Wii-Play packed with their controllers.
The main feeling I get from Wii Sports is "that's nice, but I want more of it". Why can't I play singles or move my character manually on Tennis? How about a real career mode for Boxing? Not too complex, something in Punch-Out's level. A better interface and more holes for Golf (the game's highlight, with Boxing)?
This game is a bit like a EA Sports demo disc. After a couple of games and multiplayer sessions (admitedly a lot of fun), I'm itching to play a Virtua Tennis, a Fight Night or a Tiger Woods game on Wii. The Wiimote definitely has the level of accuracy and ease of use you need to make real analog controls for sports games, and proving that is Wii Sports greatest merit.