We've been covering quite a few different ways to see what players are up to in terms of talents after dual specs have been released (both 3D Armory and TalentChic have good information if you're looking for it), and here's another: Erorus at QuickArmory sent us some info on how to pull some talent demographics out of his site as well. He's created a Talent stats page that needs a little explanation, but is actually full of great info on what kinds of builds players are choosing. First, choose a class at the top, and then you'll be taken to a screen where you can see, in percentage points, the given percentage of players of that class who took those points on the tree. In other words, if you look at the Mage page, 62% (as of this writing) of Mages surveyed by the application took at least one point in Inceneration (and 61% took all the points), but only 1% of Mages put any points in Blazing Speed (probably because it sucks -- oh snap!). You can also see the percentage points by spec (by clicking the tabs at the top) and even some general distribution statistics on how people chose to spec within the dual spec system. And the main page for each class includes some percentages on glyph choices as well.
But it gets wilder -- you can even compare populations by clicking on the talents, so you can look at, for example, all the Warlocks who specced Felguard (they're using Glyph of Felguard, duh), or all of the Hunters who specced both Explosive Shot and Aimed Shot.
Very impressive. Of course, keep in mind the population here: these are only level 80 characters already in the QuickArmory system (about 12k as of this writing), so it's far from a representative sample of the entire WoW population. But then again, they're also self-selecting -- people who have put themselves into QuickArmory are likely to be more on top of good talent and glyph choices anyway. At any rate, even with the small selection, there are lots of fascinating ways to look at this talent data.