Speaking of another unpopular voice actor opinion, Matt Sloan’s Vader voice does not work at all for serious portrayals of the character. His Vader started as a comedic impression (for the webseries Chad Vader) and only really works in comedy roles (e.g., Lego games, Lego animated features, spoof media, etc.). During Force Unleashed, I half expect Vader to be talking about his duties as the day shift manager of Empire Market.
I actually like his voice for Vader. Just my opinion, though.