New super mario bros is platforming at its purest form. No bullshit gaming. pure and fun- its all about the gameplay.
Little big planet has stronger focus on customization and community. As a platformer a much weaker than mario. But has better value with all the user generated content.
Personally, i'll go with NSMB, its just so much with a couple friends.
Bet with ninjablade:
Ninjablade wins if the next 5 multiplat on the wii u are inferior to the 360 version.
I win if one of the 5 mulitplats are on par or superior on the Wii U.