We know that Nintendo's classic games are rightly praised in their own right, but their remakes have earned acclaim from fans and critics alike.
From the ones here that I've played, Metroid: Samus Returns has to be the best one. It built so much on top of Metroid II for GameBoy and then some, giving Metroid the revitalization it desperately needed. :D
Enough about my favorite Nintendo remake, what are yours? :)