Ok, I just played some more of the single player games and actually looked at my old TV for some of them and I have to say, the majority of the games I played are so polished and fun that I think this might be the best game of the launch.
New Super Mario Brothers U is very satisfying though and I haven't played nearly enough of it.
Games of Nintendoland I have played and my very quick assessment:
Metroid Blast(only could play singleplayer using the ship): Trinen was right if it keeps this up, it feels like a fleshed out full game compared to many minigames out there. The control is spot on, the look of the game just exudes fun and it's deeper than I thought it'd be. I think it's great.
Pikwin Adventure: Notice title, enough said(might get a tad repetitive but what's there is very strong).
Balloon Trip Breeze: Finally played this on my shitty TV because I am not sure if you can play it without the TV but while the game looked like ass on my standard definition TV, I know how fantastic its art is from seeing videos and it looks wonderful on the Gamepad. A simple game with a ton of charm and very clever nuances, another winner.
Donkey Kong Crash Course: I haven't spent much time with this one but if you like tilt games, it's definitely good. Not as compelling and didn't bring a smile to my face as much as the ones I talked about and really liked but not shit.
Yoshi's Fruit Kart(or Cart or whatever): Nothing to look at at all(especially seeing the lines you have already drawn messily on the screen) but a really well thought out concept that I can tell is going to be very difficult in its peculiar way. I think it has potential for me to like this one a lot despite many I have seen that dismiss it or don't enjoy it.
Zelda Battle: Great art like some of the other games here and potentially really cool as it plays very well but I dislike that it is on rails, could have been much more and deeper(see Metroid Blast).
F-Zero GX Killer: Not at all one of my favorites but it's playable and it's not horrid, almost feels like a dance game the way you desperately turn the Gamepad to steer through the more harsh corners. A game I would try again but not one I will keep going back to.
Takamura's Ninja Castle: Works better than I thought it would, didn't play much but kind of cool and looks nice. I'm guessing it will be fun from time to time but not one I will think of playing first or second when I play Nintendoland.
If you don't mind the style of this game, the presentatinal value is very high and everything looks slick and like a lot of time was spent on the organization of it all.
It's not Wii Sports.
I like more games here than that cool game.
I'm going to try reluctantly to try out some of the multiplayer games everyone raves about but I was kind of hoping I would get to play them on a TV that did the clean look of the game justice.
The scores are fair that we have seen from many a source(seems the 7 range) but I'd score it higher and I haven't even gotten into the "meat" of Nintendoland.
If you're not expecting carbon copies of the IPs in this collection and are openminded to charming fun singleplayer games, this is it, a must have.
I can't recommend the other games as I haven't played them but they look a ton of fun, especially that fucking Animal Crossing one.