I've leveled 2 feral druids to 80, and have a druid alt sitting on a server I don't play on anymore at about 25. And yes. I'd level another one. <3 kitties.
I can see myself leveling a worgen one because I don't wanna race change my NE, assuming I start playing Ally again.
Troll though.. Ehhh. Maybe. Their forms kind of irk me. :c