not sure if I already stated the reason for including PF on this poll, it might have been at the other site that I did it so here goes.
Pathfinder is included here for several reasons.
- it is a direct descendant of 3.5 D&D as the vast bulk of its rules ARE D&D as taken from the SRD. The parts that are not, are in my opinion, (and please don't argue this point, its just my OPINION) not amounting to much more than house rules. However it is a codified set of house rules, and it is being played by a very significant number of people.
- I have left the retroclones out, because (again my OPINION only) they represent either a) a significant enough departure of the version of D&D they are based on (OSRIC for example, by combining features of old and new into the same game) that they do not follow in the DNA of said origin system or b) a more freehand approach in capturing the spirit of an edition they are based on rather than actually "being a descendant" of said system.
- At what point do you cut things off? When is it "no longer D&D". What criteria do I use? If I include 1, I must include the other, etc. etc. I think there is a strong enough case to consider PF just a re-revised version of 3.5, so Its in there. My condolences if you disagree.
You may disagree with me, and I have no doubt that there will be people reading this who think I'm an idiot for not including their favorite version....but its my poll

Its not perfect, but it is helping to gauge the relative distribution rather well.
I plan on doing this in a more scientific fashion at gencon if I can find the time to survey enough people. There is will not be limited to a fixed selection from the poll, and I can get an accurate count of every version of fun. Especially in the realm of what kinds of other games people play.