its not that are op cuz really they not its just that some of the other dps classes havent been buffed to even come close to their dps. Also u have to look at the dps specs too cuz not every spec of a maruader/sentinel pushes high dps. Like and assassin/shadow, the infltraiton and deception specs dont do good substained dps but madness/balance does pull ahead more than the other specs of the class. But honestly dps classes/specs that are low in dps need a little change in ther dps to make them more worth playing and worth bringing to ops and rwzs.
So says the guy rolling on a melee dps. Typically relentlessly defending their overpowered class so nothing will change. Go roll on a class less noobish.