RjW, SEF and your packs will melt. Lvling as WW was stupid easy, unless you mess up its pretty impossible to die, even with big packs. FoF stun and Leg Sweep stun, Fort Brew, ToK adding in the speed and ability to kite while dpsing makes lvling as WW really easy.
WW can take hits just fine and you will melt mobs.
Dont forget ToD instant kill and all the self healing we have.
Our level 60 talents alone are crazy good. With all the magic damage mobs in WoD, Diffuse Magic is king.
If you're dying to mobs I'd suggest a little PVP action if you aren't doing so. Totally changes the way you play and it forces you to realize and appreciate those spells/talents people skip over so often.
As a former hardcore healer, classes that have various ways to protect/heal themselves (combined with skills of course) is a raid utility in itself; rogues are a great example of this. Stop thinking that you need a raid cool down to bring something to the table. There was a time when the most important CD belonged solely to shamans.