Levelled 10x 85's in cata (+ all professions) but find levelling a real drag in MoP, I have 3 90's now (inc a monk) but have zero interest in levelling the other 8 from 85-90. I think MoP has pretty much killed my interest in alts altogether.
I leveled my mage first. I died like every 25 minutes in The Valley of The Four Winds because of those stupid vermin. oh my god I wanted to punch my computer it was awful. They were so close together!