Oh wow, I haven't seen very much out there like this before, this is really cool!
I love how, for lack of a better term, animated they are. I see a lot of character in their movements that really isn't there in a lot of standard Bionicle animation.
That, alongside the frame rate being silky smooth, puts this definitely up there in terms of Bionicle animation. I don't think it's fair to rate them, they're all very good at different things.