^ To be honest, RJ is pretty much works for being a Rhino Ranger, I agree with you, but it has been confirmed that RJ is the Wolf Ranger. That's what the press release said.
Since all past 5 Disney's Power Rangers, they were all bad. Now, Jungle Fury is pretty improve so far, but we are on episode 7 now. Still kinda too early for that. So far, no problem completely; despite the flaws. I hope it continues that way.
There is no way that Dai Shi can beat Rio for sure.