I'm one of those players that can't sit down and be one job forever. I want to experience everything. Though I'm very slow in doing so and already have some pet peeves. lol I hate NM hunting with a passion. Time pops give me a heart attack and lottery pops are just annoying. Which in turn has made the leveling of some jobs uncomfortable. "Where's your bounding boots, where's your hairpin, where's your joy toy, where..." SHOOOSH! If I get them I get them if not oh well.
Currently working on Dark Knight. Other's that I'm thinking about would be Dancer, or Red Mage. Will soon be duoing my Black Mage to 75 with a friend on his Scholar. So depending on how often we duo, we'll see if that's the fastest one to 75.