Yeah, I can't make heads or tails of that top 10. My first thought was Peyton was taking advantage of respect to the threat of McGahee/Moreno, but I checked and he's 6.8 YPA out of Play Action. So now I'm wondering if he's really back to form or if he has one of his best supporting casts. I can't compare though because PFF only started recording Play Action splits this year.
can't even begin to explain that... Peyton/Tannehill/Luck/Bradford/Newton don't have particularly spectacular rushing attacks in either pure volume of attempts or effectiveness with those attempts. Cassel/Fitz aren't surprising at all, and Rodgers is so good that he'll take advantage over the slightest edge over the defense. maybe that's the only reason Peyton's up there too?
how does Drew Brees compare with play action? iirc they were very effective out of play action last season when they could actually run the ball, but considering they've been a terrible rushing team this season I'd imagine his YPA is hardly improved from non-play action to play action.
You asked by how much RGIII led the league in using the play action. At 38.1% RGIII leads Russel Wilson in second at 34.4, and Christian Ponder in 3rd at 29.9. The League Average is 19.3 with a standard deviation of 6.6.
Alternatively, RGIII is a statistical outlier in using the play action, with the threshold at 36.175.