I find it really annoying that the pokedex doesn't let you see each pokemon in it's full 3D glory on the top screen, only a tiny picture that you can't move and rotate like you can on the bottom screen. Not only that but it covers the pokemon in those annoying grey dots to make it look more like a real pokedex, stoopid.
I KNOW! It is SO annoying. Especially since I use the Pokedex often for art reference. The dots make it more difficult to see.
My complaints are similar to others. I was disappointed by the story in which very little happens until one section near the end in which everything is awesome... and then nothing happens again. There's a lot of padding between the first and second gym. The rivals are way inferior characters (not to mention, having really silly designs that just annoyed me) in comparison to Cheren and Bianca (especially Bianca) who were two rivals who I actually cared about. So much potential, so much wasted.
The three dimensions are a bit awkward as well. Navigating around on those rollarskates can get kind of... out of control. It'd be great if they just eliminated the grid for forms of non-highspeed travel. We don't really need it in a 3D game. They could've also taken advantage of the 3D by having more three dimensional camera angles than the typical top-down of Pokemon games that we're used to. I personally would like it if they used a similar camera style to 3D Final Fantasy games. It'd make it easier to navigate in this new space with a sense of height.
And the difficulty, of course. Easy, and when you turn off the EXP Share, you're too underleveled. They designed the game with the expectation that you use it, and then made things way too easy. Also, I preferred the EXP system from B/W where Pokemon at lower levels received more experience from fighting higher leveled ones.
Then walking Pokemon! I'd love it if they followed you out of battle like in HG/SS. Don't get me wrong. I love Amie. Amie is great. But combining that WITH Amie? It'd just make things feel so much more lifelike. They have 3D models now so once they've designed all the overworld models, it wouldn't be too difficult to just keep reusing them. Don't even have to redraw them for animations over and over again.
Speaking of Amie, I think they should just combine the Amie system with Happiness. It's kind of a redundant thing, to be honest.
And I miss the Audino shaking grass patches from B/W as well. I thought that was an awesome idea. Great for grinding. Not that it was too difficult to grind in this generation, but maybe for post-game grinding if you have some baby Pokemon you've hatched out of eggs or something, combined with the level discrepancy bonus... it'd get a hell of a lot easier. :3
Lastly, give us more of a reason to use Grass-types. I know they got a bit of a boost, but I think they should take it further. If you're tweaking the type chart, you might as well fix things even further. Maybe make their attacks neutral on Dragon-types or
something. I mean, Grass-types are basically inferior because Water and Electric-types cover their strengths without having as many weaknesses. And that's a shame because I love Grass-types.
But again, as others have said, they were probably just using a lot of time on getting into 3D. I think things will improve in the next game, where they'll have a better grasp of things and be able to improve generally everything overall.
If you mashed this game with B/W and HG/SS, you'd have the near-ideal Pokemon game in my opinion.