Yes the SNES is an extremely close second for me, so very many great games, N64 just beat it out on my list because we never had a SNES when I was growing up playing games, we skipped straight from the NES to N64, so it carries a certain nostalgia factor.
On another note a lot of you people are just naming systems with no reasons. Shame on you.
Zombies have appeared!
You take action: >Fetch Musket
You just got Koopwnd™!