Quote Originally Posted by NealSnow View Post
Best option inho is try both really. Opinions are a personal thing so the only true way is just try both, see if either tickle you.
This is the best advice I can give. If you listen to the more..."vocal" people on the tank threads they'll try to convince you DRK is literally the antichrist and you'll be giving yourself an aneurysm simply by selecting the job stone, while none of them are taking in mind that what they dislike about the job may have nothing to do with what you enjoy in a tank.

DRK's AOE is solid and they have a busy rotation when OGCDs are up, but it's not super complex. TBN is extremely good as a personal mitigation and has a nifty counterattack mechanic in the form of Dark Arts.

GNB is more active but their personal mitigation is a bit weak to my understanding (still leveling mine so speaking secondhand here). Really flashy though, in style they have all the tanks beat IMO.