I have never met a single person that would rather see a foreign movie dubbed over than see it in its native language with English subtitles. This is primarily because dubs are corny, lose the intended emotion, and tend to blend together. For all these reasons, The UFC needs to stop dubbing over its foreign fighters.
The conventional wisdom that people are so dumb they have to hear things in English is wrong. Some of the best moments on TV in terms of drama in the last few years have been with subtitles (see: Lost), and they would have lost all their meaning if they were dubbed over. Everytime I hear that dub guy's voice I just want to scream.