Mine would be Super Mario 3

My choice would also be Mario 3...I give it 10/10.

10/10, but I think that Super Mario 64 is superior.

10/10 The Legend of ZELDA - A Link To The Past -.

With games made by Nintendo I would expect most scores to be a 10/10.

10/10

Pokemon Red/Blue

Edit: Oh, I didn't realize that we were supposed to put our personal best game. Oh well, Pokemon red/blue is still a damn fine game.

9.99/10

Probably Metroid Prime.
Majora's Mask is a close second.

Mario 64 for me 10/10.

3/10

Wii music.

edited

Metroid Prime.

I give Mario 64 a 9.5/10 It's my second-favourite, followed by Super Mario Galaxy then Paper Mario.

EDIT: Ninja'd. I give Wii Sports 5/10, because while I didn't like it it made Nintendo's future certain again and encouraged more innovative games.

EDIT: Double ninja'd. I give Wii Music 7/10, because it is very original and fun (if brief). However, I want Nintendo to go back and do some core-focused games that also appeal to the expanded market, like SMG was.

9/10

Mario kart 64