I've slowly been going through the more interesting parts of Blizzcon (in my opinion, anyway!).
No panels or previews for me - anything I can read about in a patch note isn't worth watching in real time. Competitions are where I'm at!
Arena is always my first stop - you can't beat the dynamics of fast-paced PvP, really, because anything can and will happen.
My second was the live raid.
This year was probably the best setup out of all the previous years: pitting 2 top WoW guilds, Vodka and Blood Legion, against each other in a race to clear Firelands bosses.
It actually was fairly close, with one guild's half-wipe on Baelroc and full wipe on Ragnaros determining the other guild's win.
My favourite part: if you listen to the commentary (around 8:20 in part 2/4 of the linked vid), hunters get a shoutout on the half-wipe because they used Deterrence to help tank Baelroc after half the raid died.
The commentators mention that that is a familiar sight, and I'd have to agree - I've definitely done my fair share of Deterrence tanking whilst raiding! :D