Since rangers are unlike melee classes, they can only fire a projectile every 2-3 sec. That's why they have the most burst AND lowest dps.
However, if you take an equal geared sin or barb, then calculate thier dps out on a 3 seconds delay, you have pretty much already gotten halfway with the class. The other half being combos ofcourse!
Not only will pve rangers gain from this, with more stable and reasonable dps, but also in pvp, because damage doesnt comes from 1 attack, but several with more balanced damage. Oh, and please give us back salvo! Pew pew pew!