I've seen so many different opinions on this, it's ridiculous. I've seen people say go all mastery, all power, power/critical and critical/alacrity to certain values then the rest in power.
In my mild desperation, I'm turning to the forums for some advice. Bear in mind, that this is ONLY for PVP as Arsenal specifically, I could care less about PVE on this specific character. Also, I'm only asking about augments, other than that I like to think that I've got a reasonable handle on the class. What I'm hoping is that someone would explain the optimal augment choice, along with their reasoning for it. So many of the so-called guides just say "take this" without any explanation as to why, even if their opinion differs wildly from everyone else's.