I voted for Ryu's guide because it seemed the most complete and had an easy to read format. I read everyone's guide and I thought they were all good. Delly and Ryu did a amazingly detailed outlines of D&D/NWN PvP, great work. Anheg's was also quite extensive but was much more general. Brior did the best job of making a introductory/beginners guide I thought, but it was one long paragraph which I think would make players not read it.
I listed some comments/suggestions below.
Ryu:
At the top under Glossary of Terms you don't say that APR can be found in 3.6. Like with the other terms.
2d4 can be any number 2-8, not just 2, 4, 6, 8. For instance, I could roll 2 4-sided die and get a 1 and a 2.
You mention 50% conceal in a couple places but not the 10/20/30/40/50% from the Self Concealment feats.
As Mo mentioned earlier, just rolling an 18 or higher on a 18-20/x2 won't get a critical. You must roll a second time to see if the critical actually hits.
Delly
You listed and numbered the sections at the top but none of the actual sections are numbered. Hard to tell where sections begin or end.
Forgot to mention that Wisdom increases Will in the attributes section.
Anheg
Great information without a lot of math, needs a table of contents like Ryu's and Delly's.
Brio
Friendly introduction to the world of PvP, needs a lot of formating though to make it easier to read.
-420