MMO-Champion tends to have ... far more than casual players who come here. Those that come here use the site to chat with other players regarding things whether that be for news, help, recruitment, etc. The people who are still struggling through normal Diablo III likely won't even know this site exists. Thus the poll will skew toward the higher end rather than the lower end and ultimately contradict what Blizzard's numbers are. Of course the poll won't be accurate because of this. So I wouldn't take much stock in it ... especially since people lie and you can vote multiple times in the same poll. I vote once, refresh the page, and I can vote again. Blizzard has the true numbers so they're the ones to be believed over a poll on a website that the majority of the player base likely doesn't even know exists. What's the most these polls ever see? Like 100,000? And how many of those are duplicates and how many are from liars? I'd trust Blizzard over anonymous polls any day. I'll admit, I'm playing nightmare and am stuck on act 2 due to lack of gear. May try again with the patch coming up, but I'll guess I'll see.
As for WoW, rather interesting to see Blizzard update some of the animations for classes. Some of the glyphs look interesting as well, that's for sure.