When the new enhancements rolled out I went mostly DWS with a mix of AA, because I had been looking forward to DWS--I like the idea of that better than AA (always have...back in the day, I stuck to the awful Sniper's Shot for a looong time before caving and swapping to AA), then changed over to mostly AA with a big chunk of DWS and liked it much better. Now, I tend to have only 11 AP in DWS--enough to just get Sniper's Shot, or 13 if I take +1 Wis--and around 37 AP in AA.
Even when I was still in Shiradi, I found Slayer Arrows, Improved Shock Arrows (Vulnerability), Inferno Shot, Paralyzing Arrows, to be better than anything DWS was really offering. I wish they'd do a little work on the enhancements in DWS 3, 4 and 5...Head Shot doesn't need to have such a long cooldown, Aimed Shot is kind of underwhelming, as is Improved Archer's Focus, and Favored Accuracy is too expensive at +2 per rank just to unlock Favored Damage.
I find the Archer's Focus stuff kind of underwhelming, because I very rarely find myself able to stand still long enough to build up and maintain even a 15 stack with any regularity. I really liked Leg Shot, but not enough to spend the addition 7-9 points in the tree to pick it up.