Well, I haven't played much strategus, but I can speak to Power Draw a little.  Pre-patch power draw penalized your wpf to the degree that it was never beneficial to have more than your bow required.  That has now changed however, and now I would recommend a couple of points of power draw extra, as it appears to increase accuracy rather than the opposite.  The days of the AGI-stacking archer are largely over I believe.  My build that I'll be pursuing once I retire in a few days will probably have 8 PD for my strong bow.