I'm looking for an advice. ATM I am leveling a summoner, but right after that I plan on pushing ahead one of two tanks, gunbreaker or dark knight. WAR and PLD both feel unappealing to me, but between those two I cannot decide which one to go for. I like rotations, ideas, the way they look... one feels like hulking dark monstrosity, other like "light on his toes" kind of tank.

Either way, I am curious about two things: ability to dish out the damage (for solo play) and ability to sustain temselves (damage mitigation + self healing), and I would appreciate opinions - what are your experiences so far for those two fields for those two tanks?