Which is better: Crit or Attack Power?
Neither. The two have a synergistic relationship. The value of X amount of Crit scales up when you add Attack Power. The value of Y amount of Attack Power also scales up when you add Crit. There is a common misconception that — for any particular spec and ranged weapon combination — Y amount of Attack Power is better than X amount of Crit until a certain Attack Power threshold is reached, thereafter X amount of Crit will always be better. However, if you keep stacking Crit past such a local threshold, Y amount of Attack Power will soon become optimal once again. Best thing to do is use a tool like the Gear Choice Calculator linked at the end of this guide.
