Class Distribution?

Looking to return and start playing on here although I am torn on what I should play. I do not want to roll something and have it be so saturated that I have a very hard time getting into groups.

I was wondering if anyone knows an estimate on what is played the most for each factions? I am interested in playing either a Prot/Ret Paladin, Priest, or a Mage.

Mainly interested in knowing if pallys are more abundant on Horde than Alliance.

Thanks for any help!

If you want to find easy spot in raid roll resto/elemental shaman

Def War, Resto Shaman, Shadow Priest probably.