I have no preference, save that previously silent protagonists shouldn't speak in subsequent appearances. My one exception is Issac Clarke, who got 10x better after he started getting lines.
Too bad there will never be a Dead Space 3.
I dunno. I feel like voiced Isaac was one of the big changes in atmosphere that I didn't really care for with DS2
It was more than just the protag since the "new" feeling of the enemies was gone. Enemies lose the scare factor once you know how to deal with em. Same with the mysterious factor with the lore.