I like their style, It just need to move more fluid. In order to do that, they need to go back to the old HP, LP, HK, LK setup and have three or four dial up combos. Now instead of having two or three per charachter, we can have five or six without it getting too confusing. They can keep the fighting stances, and it'll still work. The weapons as well. I like the Aerial Combat thing, they just need to refine it so the other person can try to cancel it.
the main thing I had with the 3D MKs was the speed. A run button would definitely help.