my love of nintendo stems from one and the same thing really:

i started gaming on nintendo systems and nintendo owns franchises most beloved to me (because i grew up with them)

as an interesting tidbit, it all started for me with my gameboy pocket :)

- Mario (2D, 3D, Kart, Party, Tennis), Zelda, Metroid, F-Zero and Super Smash Bros are the main reasons.

- I was introduced through the NES, and the N64 and Gameboy shortly after.

Edit: I suppose Star Fox could be added to the list.

Pokemon & Mario

Nintendo has created the two biggest gaming franchises ever! and this is why i love them

I hope you've played Super Metroid since, it is an eternal classic. And Rare, man they WERE Nintendo back then. Their games were, well, I can't say it better than you, ... so full of win!

more fan!!!!!
DKC its my favorite game

I love Nintendo because of Zelda, Mario, Kirby, Pokemon, F-zero, Metroid, primarly. I was introduced about 15 years ago by a school friend playing Pokemon on Game Boy Color

Agreed. With very few exceptions, Nintendo games are the only games I find myself going back to once a generation is over.

Shigeru Miyamoto and Zelda series.

Shigeru Miyamoto and Zelda series.

OoT, Majora's Mask and Wind Waker. Super Metroid, aLttP, Donkey Kong Country. The Wii itself. The DS.
Super Mario 64!! Skyward Sword, Galaxy. Just so much awesome.
And everything else I said.