As a native English speaker I find a dub far more distracting as I'm constantly trying to match the sounds with their mouth movements and when it doesn't line up I get annoyed and put-off.
I can read a sub without having to take my eye off the action, so I prefer those.
OT: Moana - 7/10. Pretty, humourous and some decent songs even though singing in films/television isn't generally my thing.