Scout/warrior has many benefits also, Since nobody has mentioned I'll say a few.
1. Scout/warrior uses less ammunition, as you can spam wind arrows a lot more if you keep up your elite skill "mental focus"
2. Scout/warrior get's the most Patk of all scouts, making it more viable in high-pdef instances. As well as more damage in PvP
3. " " get's the most dexterity of all scout classes, and you get more Patk/dex than any other class due to the 15 elite.
4. " " Has potentially the highest Pdef of all the scout classes (however you sacrifice a large portion of Patk)
5. If you obtain either the 60 or 70 elite (I forget) You will wreck all casters in PvP in a 1v1 situation
6. Having an axe is cool, and gives your Vamp arrows a higher DoT (not really too big of a difference) as well as your auto attacks do significantly more damage (say your soloing or are force ported to a boss, more passive deeps)
7. Scout/warrior has some team interaction with one of the elites. (Increases all damage on target by 10% for 30s (60s CD)
Personally, I chose S/w because until scouts are fixed It fits me very well for Soloing, farming instances, mobs, and on the very few occasions I do siege war (due to time changes) I feel I'm better off being a S/w than anything else.
I could play S/wd, as I'm a S/W/Wd but I don't find S/Wd too fun, no team play at all, very selfish class. Not my style.