It's hard to choose my favourite game, but I'll say it's close between Bayonetta 2 and Super Mario 3D World, both which I consider to be part of the best games ever.

That is one tough question. My favorite games are the following ones:
-Wind Waker HD
-Mario Kart 8
-Bayonetta 2
-Smash 4
-MH3U

If i had to vote for one, it would probably be Wind Waker HD or Smash.

Xenoblade X has a real chance to take the top spot though. (We will have to wait and see :D )

Super Mario World

Hmmm there is several good games on the system, well I would have to say: (I'm limiting it to games I have played and owned)
1)Smash
2)Kart
3)Mario World
4)Bayonetta 2
5)Hyrule Warriors
6) Wonderful 101

I still want to get: (Including future purchases)
Wind Waker HD
Twilight Princess HD
Star Fox
Xenoblade
Yoshi's Woolly World
Splatoon
Zelda U
#FE
Pokken

And I have a feeling I forgot some.

Are you going to buy Zelda HD twice? Or is Zelda HD the NX version?

My top 5:

1 - The Wonderful 101
2 - Mario Kart 8
3 - Splatoon
4 - Pikmin 3
5 - Wind Waker HD

1- mario 3d world
2- mario kart 8
3- smash bros u
4- Zelda wind waker hd
5- pikmin 3

Gonna have to go with Smash 4 as my number one game.

2) Hyrule Warriors
3) Splatoon
4)Mario Kart 8
5) Bayonetta 1+2

Right now...it's Mario Kart 8. When Zelda U arrives, I'm sure it'll have no problem taking that spot.

Mario Kart 8 and I haven't even bought all the DLC!