I've been pretty content with the game, though I don't know why they made Whitney's Miltank more annoying. Then again, they toughened up the gym leaders a little bit, and I like that challenge. But what a way to rub salt in the childhood wound, Game Freak.
But like someone said, Baboa and the Safari Zone are really annoying. I don't know why they did what they did with it, but I rarely go there because of it.