It could just be my experience, but the majority of players that play Orcs, Trolls, Tauren and desire to play races like Naga are male (surprising seeing how female centric the Naga are).
Most of the girls I've met in warcraft either play Elves (vast majority blood and void elves, but also Night and Draenei females ), seen a much larger number play Vulpera too - but not your Orc, troll, worgen kind, and nearly all the requests for naga are from males.
Do you find this the case? And why do you think?