OP, It sounds like you were a tank main before you left the game. In terms of tanking, I would recommend you stay with Paladin, since Dark Knight is weak as hell at the moment, especially at level 70 where Paladin really shines and gets one of its coolest abilities. In terms of dps, that becomes a more difficult choice- what is too simple/too complicated/cool looking armor and abilities is all subjective. If you don't want "too simple" then Red Mage is definitely out, since it's hands down the most simple Job to play. I personally recommend Machinist, because it brings the power of a melee dps while being ranged, the utility of a support ranged job, and looks flashy as hell jumping and flipping around when using Heated Shots. The newest raid has some nice looking machinist gear too. The rotation is a tad simple but unorthodox enough to be interesting. Happy hunting for your new main!