Of the dozen or so different bipes I've built, I've found that 0,0,0 suits me best with a couple of degrees of right thrust and a couple degrees of down. Most of these have had symmetrical airfoils. With a flat bottom airfoil more down thrust is needed.

Most of my bipes simply mush when stalled, so I never really saw any reason to try to make one wing stall first. If there are ailerons on only one wing it would definitely be advantageous to have the other wing stall first.

These were all scratch builds mind you; if I built from a kit I'd start with the manufacturers recommendations.