There's absolutely no tool you could use to tell you this, is there?
So right now I'm sitting at 39.05% ArP as fury, without gemming for it. I have two mixed gems for the meta, and one Expertise gem/enchant on the gloves just to get me up close to cap (REALLY bad luck on Expertise with my current gear...)
4227 AP right now, my thoughts right now are on replacing some 16 STR gems with ArP, would this be wise? People keep saying after 35%~ of ArP it's better to gem for it, but is this really true? Having a tough time deciding.