Gameguy: I don't think so- there were some other games with a dark plot (ex. Partners in Time) which was safely released on NA. Zero: Nope. I really need to play this series :0
Generation 5. Mainly because, 1. I like the Unova region. 2. They decapitalized the Pokemon names. 3. TMs can be used forever! 4. There's lot less HM use.
@Gameguy: I think that's a great idea. I usually had to forfiet one of my Pokemon's space as a 'HM slave'. That didn't help since HM skills aren't that useful. If they were replaced by the items, I could make a powerful team where all 6 pokemons can be useful.