Earth control is just a damn hoot. Think I've got earth/earth and earth/fire doms, and I recently cranked up an earth/kin controller that keeps Poopy (animated stone) buffed up with spirit ward, enflame, speed boost, siphon power and, of course, healed regularly making him one tough ass lump of crap.
But, of course, even now, nothin beats my main. Claws/SR for the sexy.