Here are the top 10 launch games for the Wii according to the Wii guy at IGN Matt Casamassina.
1. The Legend of Zelda: Twilight Princess
2. Rayman Raving Rabbids
3. Excite Truck
4. Super Monkey Ball: Banana Blitz
5. NFL Madden 07
6. Red Steel
7. Trauma Center: Second Opinion
8. Elebits
9. Call of Duty 3
10. Tony Hawk's Downhill Jam
Hmm...interesting, thought red steel would be a little higher up, but I guess not. Still think I'll only get TP on launch day...
Source
Ugh I wouldn't put NFL above Red Steel.
He seems to give a pretty good explanation though, and still says Red Steel might move up on his list once he plays it a bit more.
1. Legend of Zelda: Twilight Princess
2. Legend of Zelda: Twilight Princess
3. Legend of Zelda: Twilight Princess
4. Legend of Zelda: Twilight Princess
5. Legend of Zelda: Twilight Princess
6. Legend of Zelda: Twilight Princess
7. Legend of Zelda: Twilight Princess
8. Legend of Zelda: Twilight Princess
9. Legend of Zelda: Twilight Princess
10. Legend of Zelda: Twilight Princess
What the? That's not a top 10 list, that's just a top 1 list repeated 10 times!
observant...I know...
Wow... They DID put Red Steel below Madden. Now you get to throw the ball. Yay. I'm so excited.
1. Legend of Zelda: Twilight Princess
2. Legend of Zelda: Twilight Princess
3. Legend of Zelda: Twilight Princess
4. Legend of Zelda: Twilight Princess
5. Legend of Zelda: Twilight Princess
6. Legend of Zelda: Twilight Princess
7. Legend of Zelda: Twilight Princess
8. Legend of Zelda: Twilight Princess
9. Legend of Zelda: Twilight Princess
10. Legend of Zelda: Twilight Princess
my opinion exaclty 
I would have switched Red Steel and Madden, but otherwise I agree with most of it.
My list would be:
1. The Legend of Zelda: Twilight Princess
2. Call of Duty 3
3. Trauma Center: Second Opinion
4. Red Steel
5. Excite Truck
6. NFL Madden 07
7. Tony Hawk's Downhill Jam
8. Elebits
9. Rayman Raving Rabbids
10. Super Monkey Ball: Banana Blitz
Where's GT Pro, and Splinter Cell : Double Agent?
Splinter Cell is a good one I'm going to pick up on launch day, and probably GT Pro.
Well if you read the article, you'll see he hasn't played Splinter Cell yet...so therefore it isn't on the list, but he did say his list would change closer to launch date.
Isn't Splinter Cell just a port? Are they changing anything drastic to the gameplay?
1. Legend of Zelda: Twilight Princess
2. Legend of Zelda: Twilight Princess
3. Legend of Zelda: Twilight Princess
4. Legend of Zelda: Twilight Princess
5. Legend of Zelda: Twilight Princess
6. Legend of Zelda: Twilight Princess
7. Legend of Zelda: Twilight Princess
8. Legend of Zelda: Twilight Princess
9. Legend of Zelda: Twilight Princess
10. Legend of Zelda: Twilight Princess
my opinion exaclty 
QFT
1. Red Steel
2. Madden 07
3. Call of Duty 3
4. Legend of Zelda: Twilight Princess
And the rest I will buy from the Wii Store like the vintage games until something really appeals to me.
i think that madden 07 being placed above red steel is reasonable
if u listen to some of his podcast stuff, he says that madden has great controls, but says that red steel needs to work on their controls a little more for it to go up in his list
I still think that Zelda TP will beat every game ever created!!!

Sports games are the most bought games, that's why they rank high.
Here are the top 10 launch games for the Wii according to the Wii guy at IGN Matt Casamassina.
1. The Legend of Zelda: Twilight Princess
2. Rayman Raving Rabbids
3. Excite Truck
4. Super Monkey Ball: Banana Blitz
5. NFL Madden 07
6. Red Steel
7. Trauma Center: Second Opinion
8. Elebits
9. Call of Duty 3
10. Tony Hawk's Downhill Jam
Hmm...interesting, thought red steel would be a little higher up, but I guess not. Still think I'll only get TP on launch day...
Source
i think its well put together. i have no arguments
- The Legend of Zelda: Twilight Princess (as if there was any doubt)
- Red Steel
- Tom Clancy's Splinter Cell: Double Agent
- Call of Duty 3
- Need for Speed: Carbon
- Excite Truck
- Madden 07
- Trauma Centre: Second Opinion
- Super Monkey Ball: Bananna Blitz
- WarioWare: Smooth Moves
List #2 from IGN:
#1: Zelda
#2: Trauma Center
#3: Monkey Ball
#4: Elebits
#5: Madden
#6: Excite Truck
#7: Red Steel
#8: Metal Slug
#9: Rayman
#10: Tony Hawk
source - http://blogs.ign.com/bozon-ign
what? how can trauma center be there? its a DS game just ported...