Most of them are arms-specced pvp robots. There's a ton of warriors in the game, at last count overall it was the second most popular class to rogues. It's just that very few of them are tanks.
I hate to tell you I told you so... but hell, I told you so.

I had a feral druid for over a year, and am one of those peeps that enjoy regular casual pvp, and nothing annoyed me more than trying to pvp with that druid. Told myself i'd never roll a spec unviable for pvp again, which is why I went shammy. Little did I know that the PVP gods of pre-TBC wow had, somewhere along the line, been nerfed to death. Sigh.
Next 70 will simply be a cheescake dps+cc king, ala lock or something.