Brute damage auras are gold. Keep in mind that almost all Brute attacks, and definitely attacks in primary/secondary are modified by Fury. Brute Fury turns meh attacks into steamroller damage.
People constantly tell me how Scrappers do so much more damage than Brutes. Or How Tanks, with the AoE changes, do more damage than Brutes. Heh. I was there on live, when they did it. They changed Brute's Fury because Brutes were out damaging Scrappers. I only played Brutes and a few Doms back then. I watched it close. They tweaked it just enough to bring Brutes under Scrappers without Brute players having a grievance, and threw Brutes a bone in changing Fury decay to boot. As far as Tanks go, yes, jealous of the AoE. No, they do not put out more damage than Brutes.
Brutes are indeed that glorious balance between Scrappers and Tanks. I can Tank Recluse on Master settings in the MLTF on a Brute, for as long as the team needs. More armor is always nice....but.... I can do nearly as much damage as a Scrapper once I build up a head of steam on a Brute. A Tank DOES NOT do as much damage as a Brute, regardless of extra AoE coverage. A Scrapper just does not have the health pool to take the inevitable RNG hate that happens in heavy combat. My Brute falls, but only when I am caught by surprise. Like jumping into a bunch of baby Snakes in a 50 Mercy mission without realizing they were all 53 bosses. Rezzed, played correctly and spent a couple minutes burning them down with no other deaths. When I know the fight I can use tactics, inspirations, buffs, etc to survive almost anything and grind through. That is way harder for a Scrapper to say. Finally, Brutes high damage cap revels in high end game type mechanics like Fulcrum Shift, team inspirations, and team buffs. In these situations (I do not run data mining tests) I am fairly sure Brutes are once again out damaging Scrappers, since they are just behind them solo.
Brute 700%
Blaster, Corruptor, Scrapper, Stalker, Tanker
210% at level 1
500% at level 21+
all others
200% at level 1
400% at level 21+