BLUF: Warrior...now.
I returned from a 6 year break. While I was way under-geared and under-AA'd, I had to drive with my Bard to ensure my pulls were only singles. Then, start reading, start learning, get everything set up correctly, get the right gear, AAs, now I 99.99% of the time run WAR. I used CWTN/Sic plugins now, and, while aggressive, my crew can plow through a pull of 5-6 even/yellow con chetari's with no issues.
My team: WAR/SHM/CLR/BRD/BER/BER
My pro-tip: Once you are geared where you want to be, screw mezzing during farming or grinding. Set up a hotkey for all your melee toons to Rampage at the same time...watch mobs melt.