I watched it both in the 3D HFR and 2D version. I prefer the HFR version since the action was more fluid. But that could just be the crude conversion. I really didn't noticed the 48 fps after 30 mins or so, I just enjoyed the movie instead.
So you are saying iOS 6 sucks, yet you complain you can't install iOS 6 on iPad 1? Why not just stay on iOS 5? It works great and almost all the apps work on it.