Originally Posted by Tinwhisker

Because EP weights for Agi and AP can flip flop with each other even to the point where you're using both at the same time for max DPS, any answer we give won't be accurate. The spreadsheets are the only real way to get an accurate answer.

If you just want an answer though: Go Agility, Aldriana stated once that any DPS lost by using Agi over AP when they're so close would easily be made up by the time you gain with a single dodge. (Dead DPS is no DPS.)