Best way to go? Brandish vs AC?

If you can get the Brandish books, just get it maxed first (with 1 point in A.Combo for the extra orb)

It takes until 21 to hit 3 targets, you want that to be sooner than later =x Plus Brandish's per point boost is always higher.

Anyone should be able to get both Brandish mastery books now. Haha They're incredibly cheap and common.

And max Brandish first.