I think all the DOW classes are more or less the same, though they may have gear biases (my PGL retainer has only brought me one piece of ilvl 70 gear and it was for PGL/MNK). DoL classes can gather expected things. I think the quick exploration is the same thing no matter the class (random stuff from fish to lamps to primal weapons). I went with pugilist and miner, though I'm going to actually have to level my miner soon before my retainer catches up.