I think somewhere between OS Ash's emotion and enthusiasm, AG Ash's goofiness as well as character, as well as finally DP Ash's battling skills, that is the perfect Ash. Hopefully, man.
I hate XY not because of Ash or Clemont (I think Ash is just okay-- standard and generic, while I think Clemont is pretty good), but it's mainly because of how the writers are handling Serena, I find Bonnie/Eureka very annoying lacking any depth or emotion, and finally I find Team Rocket very, very stupid and irredeemable.