First off, which generation is your favorite? Generation One! I started Pokemon from the very beginning when it first came out.

What pokémon is your favorite? Shuckle!

What (Non-Legendary) pokémon do you think is the strongest? Rhyperior

What is your favorite starter type? Fire

Favorite starter? Charmander!

As for the Nuzlocke Challenge, I too wouldn't restart my game in Y. I've collected some rare and powerful pokemon.

Mew (Fall 2010 Event)
Groudon (from HeartGold)
Celebi (Pokemon Bank Event)
Kyurem (transferred from Black/White or Black 2/White 2, I forget which)
Palkia (transferred from Pearl)
Zapdos (traded from Gold)
Suicune (traded from Gold)
Victini (2014 Movie Event)
Rayquaza (traded from Emerald)
Keldeo (Winter 2013 Event)
Diancie (October 2014 Event)
Entei (traded from Gold)
Darkrai (May 2012 Event)
Raikou (traded from either Fire Red or Leafe Green, I don't know)
Meloetta (Spring 2013 Event)
Genesect (October 2012 Event)

And I have several powerful pokemon that took several days to breed and just as long to train. I have nowhere to trade them anymore for safe keeping so there's no way I'm starting over. Although I could try the Nuzlocke challenge on Pearl. I still have Pokemon Pearl and I traded all the good pokemon from it over to Y. I'll think about it.

I'm really jealous of TAC though. He picked up the Movie event Arceus available only in Japan from the GTS today. It's SHINY, has Judgement, Blast Burn, Hydro Cannon & Earth Power! He also got his hands on a Shaymin today! I want it but he knows better than to give it up. >_<