if you watch some of the best destiny pvp players on twitch.tv you can see that they play with all classes but they all love hunters the most. Unique specials able to kill more opponents and very fast moving ability is all they need. The best players play bladedancer (they usualy act like ppl with ADHD, never stands still, still needs to do moves with their finger when the game is loading, talks fast, act like permanent nervous, read twitch messages while playing etc) and players who are not physicaly able to play that fast usualy ends up with gunslinger.