On my server Halaa wasn’t exactly a hotbed of activity back in TBC, but the battles that did occur there from time to time were incredibly fun. I recall one battle in which there were 2 raid groups formed on each side of horde and alliance, which lasted for over an hour. It was during this battle that I earned the necessary tokens for my Dark War Talbuk, which is still among my 5 favorite ground mounts. This mount was not easy to get back then, so I would imagine it’s near-impossible to obtain now.
This was also a great era for Beast Mastery hunters, as we were incredibly powerful during this period. BM DPS was crazy, plus we still had the 18 second CC immunity from TBW. I was raiding and doing arena in those days as well, which had me very well geared. It was quite fun to blow stuff up in an epic PvP raid setting.
Those fierce battles over Halaa back in The Burning Crusade were among my most memorable WoW moments. I can only hope that something similar will be introduced in Warlords of Draenor.