I don't do the PvPs often, but I will say, the PvPs on BH is quite entertaining.
For those PvE minded people:
Top 10 US Server for progression.
Active. Be it PUGs for all instanced raids, or the world bosses.
Yes, I've been ganked. Was I camped endlessly? NO.
The majority of players understand there is a vast cross section of player types on BH. They'll fight you, and when they see you have NO clue what you're doing, they tend to shy away from you. Most of them REALLY want a challenge, not just free kills. *
People fighting over dailies? Yes. But only until they've completed theirs! Very few people take to camping questing areas. Will they kill you while you're questing? Probably. But when they've handed theirs in, they move on. In most cases, you'll get back to your body and be able to continue on your way.
When things get hairy and the wPvP kicks up, it tends to be OUT of quest areas. Will PvP happen IN a quest area? Yes. However, if things kick up to full on battles, they tend to move to areas free of Mobs, which allows you to go back to questing!
The economy is active, take Elbeghast's word for it.. You don't have to be gold capped to support your Raiding or PvP'ing. The AH has a quick turnover. Just remember, relative prices are relative. 20g vs 200g, cause the Ore is much cheaper. ;)
Higher Population server, and you will only find a queue on major content releases. (10 Mins is my max wait, after MoP release, and never again since.)
* You might find some of those players. It happens everywhere.