So this is interesting. Did you mean accuracy instead of power? As a base modifier to all other damage output power makes sense, but I also did not put accuracy in here, and I have recently started to put some focus on it - if you aren't hitting, then ultimately crit, surge, and power all would be failing to live up to the potential as we wouldn't be getting the most bang for the buck using the rationale that if you don't hit, then all that potential damage gained from surge, crit, and power go away simply by missing? There is also the question of alacrity, and determining what the cap is for it, though I think alacrity is going to be the lowest priority stat? Unless there is a massive increase from snipe cast, sos ticks, etc..
So maybe the priority is Accuracy to "cap" -> power -> Crit to "cap" -> surge -> alacrity?