Uhhm, I don't know.
While I haven't actually played D\P\Pt -yet-, they're already my most hated games, or rather, least favorite. Something about the heroes, the concept of god being introduced, the awful legendaries (I hate dialga and palkia, not sure why.) just make me not like the game.
Right now I'm lurking on ebay and thinking of buying a GBA SP just to replay Emerald. I don't think I will feel the same way about the 4th gen (HG\SS excluded. I love them.)
I WILL replay HG for sure. Except maybe this time I'll play SS instead.