Brute or Scrapper will definitely do more damage than a Tanker will. You will have a somewhat harder time reaching the several softcaps if that's what you're looking for. But the Tanker will be a much more leisurely ride. If this is a solo character I would build for some recharge and mostly recovery. This is how I built Heraclea as a tanker then and now; then again, as a tanker the several softcaps are much easier to reach. Practical immunity to the endurance mechanic is what I aimed for. Tanker defenses are overkill except in the most extreme situations, even on redside.
The brute that clicked with me is radiation melee/electric armor. I skipped the electric t9, like I always do with such powers; they get 'saved for special cases' and as such never used anyways, unless the trays swap on me unnoticed and I click it by mistake. Radiation melee is like the red-headed stepchild of Dark Melee. It has a self-heal that doesn't always work, and much better AoE; this combination has two PBAoE damage auras, and just standing there builds fury and mobs die as the damage ratchets up. The character resists endurance drain at 95%, which is adequate, and has a recovery AoE that's much faster than the one in Dark Melee. I did stuff like World Wide Red as the character's finishing lap. The thing is, while leveling the character really struggled with endurance, so I fitted her with all the recovery uniques very early on: at level 50 the combo is golden.