Of all of the Wii U games Nintendo has been porting over to the Switch, New Super Mario Bros. U is arguably the biggest. With Breath of the Wild launching so late in the Wii U's lifecycle, I think it's fair to consider New Super Mario Bros.
Solid Mario platforming; as always; Multiplayer is a lot of hectic fun; Looks excellent on Switch - the best looking 2D Mario game to date
No enough new content for people who already played on Wii U; Plays it a little too safe - a by-the-books NSMB game