New Team or Old Team

I've only ever used Pokémon from new regions as I don't have any way to trade Pokémon from one game to another.

 

I love the older Gens, but If I want an old first gen team, I get a first gen game. My team will be made of the new Pokémon, with a exception for Bulbasaur. I just think having a gen 1 or 2 team in gen 6 defeats the purpose. I think a party should have 75% new Pokémon and 25% older Pokémon. That is my thought.

 

I'll probably use many new Pokémon through the game this time around, ending in a mix of new and old. I'm eager to try out the new ones and see what I end up liking, but the favorites will never die. Any post-game dream team will most certainly be a mix from multiple generations.

 

Basically what Doima said above. I'm mixing new and old for this team. Using the Kanto Starters, hopefully Gardevoir will be available in-game with its new Fairy-typing, and the Torchic from the event. On my second run through, it'll definitely be a different game, but on the first I'm looking just to get through the region of Kalos with some Pokémon I already know. Test the waters a bit.

 

I am not sure what I would do.
I'll pretty much train Pokémon that I feel like training. Whether or not they're cool looking or are useful to the situation that I'm currently in. So I'll probably have a mix, like usual.

 

I'll probably use mostly new Pokémon. It really depends on what and when Pokémon are available to catch. I still haven't decided if I'm going to use whichever Gen 1 starter I choose (probably Bulbasaur).

 

i always do a first run through of a new game with only new Pokémon you can catch in-game and then worry about actual team building with other/older Pokémon and breeding/etc. afterwards. i like to enjoy the game purely to start.

 

I always focus on the new Pokémon and X/Y will be no different. The only non-gen 6 Pokémon I plan to have is Charmander.

 

As much as I like to use new Pokémon, I always end up with some oldies (provided they are available in-game). Depends on the situation and the designs though, like Banshee said. I always use Sableye for Brawly in R/S, but I replace it with Machop after that.

 

I use all new Pokémon for a region. That was the case in Gen 5 at least, because that was all that was available at first.

In my Silver days, my team was pretty much a combo Gen 1 and Gen 2. I recently got and beat Platinum but given the fact I have never played R/S/E, I couldn't really tell you if I was using Sinnoh exclusive Pokémon all the way through or not. A couple Hoenn Pokémon may have snuck in and I'd never know.