I went Bard main when I started and have stuck to it while gradually improving as and gearing White Mage because healing was more fun than I initially gave it credit for. Same problem, though, in that I don't think the right class for me to really call a "main" has been introduced to the game yet (although I'm having a lot of fun with the two I juggle between). Astrologian may change all that, since it seems like it'll hybridize healing and support and has an incredibly awesome weapon and concept - I can't even tell you how excited I am for it. So I guess we'll see!