LeafGreen. Actually... It's more a colour reason than an "exclusive Pokémon" reason x) I was happy to play with the remake of the unreleased Green version (well, I mean, in America and Europe), plus I prefer the protagonist Leaf than Fire. Fire is just a remake of the awesome Red, and, you can't remake such a person. While Leaf is a whole new character, and represent the unreleased female character from the 1st gen, so that's awesome.