So I've done a good number of battlegrounds over the years with many classes, but I've never been a "hardcore" PVPer. I am pretty casual.
But I must say, I am liking the hunters right now in battlegrounds. I can actually kill people!
It seems like my biggest problem in the past has been getting someone damaged, but unable to finish them off. The thing I like most about playing my MM hunter is the burst. I'm not using a pet, instead taking extra damage. The MM hunter can put out some big hits, several in a row. You can almost sense panic when people see their HP falling like that. I've definitely fallen in love with the burst.
Last night in AV, I was guarding a bunker flag in our base. A DK runs in and he's all over me. I can't get distance inside the small bunker. So I run around the outer ledge, drop an explosive trap, and send him flying out into the valley. I love this utility.
So as far as enjoyment of classes, I think hunter has moved to my top spot in WoD. Monk is fun too, and a close second.