w/r's became popular when swords of fear were introduced, since they pretty much had a 2-hander's damage as a 1-hander.
w/s used to be fun and good because you could throw Shots in between attacks but they changed the skill so you cant do that, i quit shortly after they did that, so im not sure how anything/S is faring these days.
then toss in the elite skills, but i say w/r would be better.
personally i just like w/k, can get as much damage as most other dps and Enhanced armor is so overpowered.