Dark knight should be a shield focused tank, that'll be pretty dope. Sometimes I always associate DRK with blood death knight from WoW. I love it and I miss it. Each Tank in WoW is soooooooo different from one another, each have their own unique flare as a tank i.e. blood death knight, Brewster monk, Unlike FFXIV where everything is pretty much a standard cookie cutter, it doesn't help the enjoyment of the game when the uniqueness only happens at near max level.

When I think of a Warrior, I think of one jumping right into the heat of battle, the more dmg he takes the more adrenaline he has, the higher dmg he does, heals faster too. I guess the thing that ruins the fantasy in the current war is that he heals off the dmg he does instead of being buffed to receive more healing.

As for PLD, I never really liked the whole Templar or aspect of holiness fantasy.

As for Gunbreaker, it should seriously be a damn DPS. It already behaves like one, everything about it is dps. I'm not sold on it, it doesn't give me the tank vibe.