I used to play an NE hunter on Azshara server, and I find that the NE racials is quite a big help.

Here's some of my experience during PvP in AB. Usually, if the ally's take over the Lumber mill, I'll shadowmeld at the wooden structure and wait for an unsuspecting "victim".

Right after I spot someone trying to cap the flag, I'll pull of an Aimed shot and try to finish him of. But if a big group comes, I'd rather report it over the [Battlegrounds] channel, and try to be An Hero by stalling the horde

Lol be warned though, if you have a cat that has prowl, you have to station it FAR away, since people can see your pet easily altho its prowling.