I voted for the Katana since it 3d's the best and is almost as smooth at the Edge 540 that I have and the extra. But, I know that I am biased and maybe not addressing the same points as the rest of you. I like loops, rolls. and some of the other pattern moves, but I also like stalls, Inverted and upright harriers and flat spins and High angle knife edges, and for those moves, Profiles fly best. But that is just me and may not count in the overall best design