I'm going to see if I can get

Nintendoland
Batman AC.A.E.
Tekken Tag Tournament 2
and
New Super Mario Bros. U

I really want Ninja Gaiden III too but I'm really stretching my $ here. SO I going to see if I can stretch it just a little more.

Monster Hunter 3 Ultimate
Bayonetta 2
Tekken Tag Tournament 2
Batman Arkham City
Mass Effect 3

I feel like 5 isn't enough... there are still more I plan on buying.

Nintendoland
New Super Mario Bros. U
Batman AC
Sing Party (made by the DJ Hero devs)
Black Cops 2

Would buy a bunch of Ubisoft games, but I know they drop their prices sooner over the other publishers and I hope I can control my urge to play ZombieU.

Here' my top 5

1. Nintendoland
2. NSMBU
3. Pikmin 3
4. The Wonderful 101
5. Scribblenauts unlimited

I think that Nintendoland is going to be an amazing game, it looks like pure unadultered fun and could possibly be the killer app for the Wii U.

I haven't played any yet but based on everything I know, these are what I'm most excited for:

1. The Wonderful 101
2. ZombiU
3. NSMBU
4. Nintendoland
5. Pikmin 3

EDIT:  Oh, and I'm VERY much anticipating Bayonetta 2.  

All of it is good, except for the handful of shovelware games of course, but overall the good far outweighs the mediocre in this launch line up, which pound for pound is arguably the best ever.

Something for everyone, and with more great titles coming shortly after launch like Lego City, Aliens Colonial Marines, Pikmin 3 and Bayonetta 2, looks like there won't be a software drought after launch like there has been with so many other Nintendo console launches over the years (pretty much everything from N64 and on).

1. ZombiU
2. ZombiU
3. ZombiU
4. ZombiU
5. ZombiU

Am seriously pumped for this game lol.

Too difficult to name just 5 tbh.

1. Assassin's Creed 3
2. ZombiU
3. Pikmin 3
4. New Super Mario Bros U
5. Darksiders 2

Honestly, This list doesn't excite me that much. I've got the 32 gig model preorded. So i guess I'll be playing Nintendo land, I'm sure I'll pick up Mario, and wait for 101 to come out from that point. 101 is the only game I'm excited for. Everything Multiplat will still be played on PS3.

For titles available on the launch day?

ZombiU
Black Ops II
Scribblenauts Unlimited
Darksiders II
Batman: Arkham City - Armored Edition

Maybe Ninja Gaiden 3: Razor's Edge and New Super Mario Bros. U