I voted Platinum but I am also cool for Yellow. Pikachu follows you + all starters = best.

Blue/Red cause classic is way less painfully enormous.

Although I liked yellow and having the three original starters, everybody has to have done that. If they didnt do it, they watched the show. We need a more creative team. I think it should consist of all mid to low tier pokemon so it is an interesting challenge.

I vote Platinum.

Red. Bulbasaur. Open catching. Include Scyther, A ghost, A good lightning type, Hitmonlee(or maybe Hitmonchan for all the elemental punches) Gyrados, and Venasaur, don't forget sleep powder and solar beam.

Beedrill and Clefairy!

Considering I've (only) played Red in ages past, I'd prefer to see a newer generation game.
Starter should be a grass-type.
The team should have a Scyther and a ghost-type, don't remember enough to talk about the rest.
Feel free to catch (and use) whatever you want, just try to keep some in the team constant.

Mankee->Primeape all the way baby.
 

I too would like to see this. Open catching too and have more than a 6 man squad if need be.

Also, barring the Elite Four I would also like to see a lack of Item spamming on things when in battle (Or as much as the opponent uses). I would like to see this be a challenge for you, as I think nearly everyone here has beaten Red/Blue before.

Edit: Also, I'm not sure if you should use the remakes or the classic games; the former are much prettier to look at, but some of the older graphics were pretty hilarious if I remember.

Listen this dude.
But choose Crystal instead.

And fuck you if there's no red Gyrados in your team and Poliwrath. And Cyndaquil.
Team water, ready, set, go!

edit:// I know Cyndaquil isn't water type, but, but..

I voted Gold, but Platinum or it's generation is also good.

As for starters, go for the Water dude, it's good in every gen. Grass and Fire both have weak points.