I appreciate MidiGuy's fandubs a lot. But just because someone is good a singing doesn't mean that they are perfect for every song. I'm sure one reason his "We Go!" sounds off to us is because we're so used to hearing either Hiroshi Kitadani or Vic Mignogna with "We Are!", so someone else at the helm would throw one off. He is at the top of the league though, I haven't heard anyone put as much effort into fandubs than him.
I'd say "Fight Together" is my favorite one ^^