I put my vote to sunbreaker for a few reasons 1 . sticky nades . best rumble nade IMO . you can ignore dueling someone just by sticking them and going back to cover . you can shut down a shotgun rusher even with jugg with a simple stick and finally you can turn a death , into a trade if you mess up 2 . skating . being fast messes with the spawn logic in destiny and you will catch people as they spawn or right after , giving you an advantage . also lets you disengage from bad fights quickly 3 . Good slaying super . easy 36 kills over a match , meaning you get 75150 free points from just having it be super kills 4 . HP regen on all ability kills . finishing off a fight with a melee ? full health . last second stick and the shotty only barely lets you live ? full health . also makes you harder to shut down in superpairs perfectly with fusions which are IMO rumble kings at the moment as its a LOT of 1 v 1 s and its extremely hard to push a fusion user with a shotty , and everyone is a shotgun warrior in rumble . once they learn to not rush you you can do primary duels which are relatively easy or they keep rushing you letting you stack pointsEDIT you can also go sunsinger my number 2 if you want a far better melee in turn for a super that doesnt guarantee kills and no HP regen . sticky nades are just so good in rumble IMO