Pick one :3 Personally I would want the Merge of all the regions for longer game play.

Well, some of the original games - With their remakes - all ready allow you to let your Pokemon follow you around, as long as their in the first slot (I think it's either Pikachu or nobody in Yellow, though), so that's not very worth choosing.

I guess I'd choose to merge all the regions into one great big game, out of all the choices. It'd be amazing to see what can be done with it. Maybe a better story for once? It'd probably even have to be on a console like the Wii U to even work, so that can probably bring in the possibility of some pretty amazing 3D graphics and stuff. Overall, if they were try something with this, it'd have some amazing potential.

Dean2k13 :

It would be fun wouldn't it? But here's an even greater idea. Like you said, ALL Legendary Pokémon would be there. But in all the games, you only get a single Master ball (unless you use cheats or you manipulate the trade system). Now, this may or may not be a good idea, but, since all legends are here, wouldn't it be awesome to be able to BUY a master ball finally?? Like after you beat 3 of the leagues, the Master ball goes out into stock. But since it's so powerful, the price would be like $500,000 for a single one. That's the challenge of it. Now think about a hidden extra world, like in Leaf Green and Fire Red. The extra islands that never existed. Think of a place where it had extremely high level Pokémon you can catch but at the same time, challenges like the Battle Frontier and Orange Islands. Extra places to achieve extra things. Also think of Kyogre and Groudon. You have to awaken them to catch them. So, as an extra game play, you have to somehow obtain the Red and Blue orb and find where they sleep and awaken them. Some serious game play here that Nintendo should really think about. This game right here would be a HUGE money seller. And since not everyone has a DS (I have one, but a first one lol) they should make it for GBA and ALL DS games!

I think it would be really awesome to have like all the regions joined together to have like one super region, I think it would be awesome and a really good idea too because you can get all the starters from all the regions and you can explore the entire place too. I think that it would be a great idea and it would be awesome to have in a Pokémon game because it would be challenging, fun and cool to collect and have a variety of Pokémon from all of the regions. Plus all of the legendary Pokémon could be together as well and that would be awesome to be able to collect all of them.

I think it would be an awesome game if all of the regions were merged, you could level up all of your Pokémon to 100 much easier, you can collect all of the starters and train them as well as catch all of the legendary Pokémon as well. I think that this would be an amazing idea and I would totally play a game that is just like this!

I'll pick the ability to choose a villain team. A dark decision like that can't hurt in a Pokémon game... right?
I'd think it would be interesting.

A game that combines all regions would be epic and worth the money to play I always wanted a game like that but gave up on that after the realease of Pokemon heartgold and Pokemon soulsilver.