I don't reall mind whether it's subbed or dubbed. I'll watch it wither way. My only grip is if they redub a word said in English by a Japanese mecha voice.
E.G. The vent rousers of the Riders in Kamen Rider Ryuki/Dragon Knight. They should'a just left the original voice on the vent rousers instead of replacing them.
If they ever remake Decade into an American series they better leave the drivers alone.