Zelda....

(The series I follow avidly are:
_Zelda
_Mario
_Mario Kart (I did skip 64 and GC iterations...)
_Metroid
_SmashBrothers
_Paper Mario
_Starfox

The series I like to jump into from time to time are:
_Fire Emblem
_Battalion Wars/ Advance Wars
_FZero
_Wii

Series I never got into:
_Donkey Kong
_Pokemon

there's probably more, but not on my mind right now.

Zelda and RPG style Pokemon. Mario and Mario Kart and Brawl tied for second.

Zelda
Fire Emblem

Well, I'm a young player, so I couldn't play a lot of the best Nintendo titles, and even though I'm trying to play them trough the VC, of course, I cannot enjoy these experiences as if I were playing them when they got released.
Anyway, my favourite franchise is F-Zero.
Followed by Punch-Out.
Third place?
Zelda.
I'd like to say Fire Emblem, but I only played the Wii & DS ones :(

I have to go with Zelda although Paper Mario is a close second.

pokemon zelda or Fire Emblem

In order

1. Mario 2. Zelda 3. Smash Bros 4. Pikmin 5. Mario Kart

I'm trying to identify which one I love the most between Mario and Zelda and I can't. So both of them.

Zelda, F-Zero

F-Zero, Paper Mario, Advance Wars, Super Mario, Smash Bros., Animal Crossing and Mario Kart are among my favorites.