Loving Zelda so far, it really does feel like LTTP 2013. Stop reading posts about it and buy it if you haven't already.
I did play the Wii version of DKCR and apart from the horrible tacked on motion controls, I really enjoyed it. I picked up the 3DS version only because I wanted to play the game the way it should be played, no motion controls. My only problem with it is they seem to have done a straight port which is fine gameplay wise however the camera is set for a game made to be played on a tv so DK is tiny on screen. I have no idea how people play on a non XL 3DS.
NSMB2 is basically what you expect. The coin gimmick really doesn't add anything new to the formula and the levels don't seem as inspired as NSMBU.
I picked up Pullblox based on teejay's recommendation and it's pretty cool, worth checking out. I also picked up Gunman Clive for $2.50 and it's pretty awesome. It's a no frills Mega Man style game.
Also I can't play the 3DS for longer than 10 minutes without it cramping up my hands so I ordered one of these grips and it makes a pretty big difference. It's not ideal but definitely an improvement. Does anyone have the circle pad pro for the XL and is it worth getting? Has Nintendo compeletely forgotten about it? Seems there isn't that many games that support it.