I bet watching all those mage/healer/x teams was amazing.
I thoroughly enjoyed watching the circuit. Casters did a great job and many of the games were exciting to watch.
I also want to say that we saw a good mix of comps, classes and specs. Off the top of my head - dks, dh, resto sham, ele sham, rogue, fire mage, frost mage, destro, holy paladin, mw monk, ww monk, surv hunt, feral, boomkin, shadow priest, and disc priest. There were even more classes/specs represented in the games leading up to the circuit. The “best” comp changed over the course of the circuit and teams were even changing up their comps in the grand final matches.