Well I'm mainly a Warrior tank but I've recently been playing Dragoon a lot more and enjoying the rotation and dps of it. But as many have said I didn't quite notice the terrible tanks until I started not tanking and for some reason most of the terrible tanks themselves are Paladins, the horror stories I've had so far of these egotistical self righteous pompous princesses. Theses guys don't even communicate with the group and start pulling packs upon packs forcing a speed run for no apparent reason, Getting stuck in an endless loop of a Slenderberry stabbing at the party with the tank positioning the packs poorly until I say to follow my lead and break away into a safespot, then they have the nerve to bark COMMEND ME.
EDIT: OH AND BARDS, omg these guys when they don't sing when I'm bottoming out on TP around 20-30% of a fight remaining and say manage TP better I just want to smack them upside down due to their arrogance in thinking they're too good to since to keep the tanks/melee supplied with enough TP to sustain their much higher DPS rotations compared to the bard's throughput.