I know Agi is better than AP in equal amounts (50 Agi > 50 AP), but I'm a bit fuzzy on how much more AP than Agi there needs to be in order for the AP to be better, especially considering that the crit the Agi gives does not transfer to pets.
So far, I've been gemming and enchanting for AP, along with a few weird gems that I'm planning on replacing now that I have the gold--I'm trying to figure out if I should keep going for AP, or if I should just toss out all my old gems, not just the weird ones, and replace everything with Agi to boost my crit a bit.
http://www.wowarmory.com/character-sheet.xml?r=Sen%27jin&n=Izsera
(Yes, I know I'm way over hit cap right now--just got the trinket and I'm trying to figure out where to trade +hit for other stats. I was thinking maybe getting a melee weapon without +hit, but I'm still deciding.)
Also, does anyone know of a free or inexpensive program that plays nice with the hunter spreadsheet? Microsoft Works Spreadsheet doesn't seem to like it very much, and I'd rather go for a replacement that you guys have recommended, than try to find one myself and probably end up downloading something icky onto my computer in the process.