So for a while Be.imba.hu was the thing but a while back I was turned on to wow-heroes.com.
I am suprised how few people know about these so I thought I'd share even though it's not really a "hunter" thing but very usefull for any toon. Sharing on this board because this is where 99% of my time is spent.
Extremely useful when trying to set up a pug raid. You can see much more at a glance than the armory shows, like enchants, gems, overall gear score and a window for all raid achievements.
Maybe there's an even better site out there that someone might make me aware of as well.