The vast majority of the population during beta was Mithra, from what I saw, same as the last game. I suspect things won't be any different once the game really gets rolling, either. I honestly don't get the appeal.
I'd have considered a Miqo'te male had they let us actually choose one... I think more beastly characters are interesting. Last time I played EQ2 I played one of those dragon guys. Saurak? Or something.