Well that's really a double bladed sword, while PBAOE is the ownage in farming or leveling friends. It's fairly horrid in PVP, especially the most common pbae builds(unless on a team totally based on luring/tricking people into staying in pb range).
The two videos in this post show good pbae farming examples, though may not be what you're looking for http://www.guildwarsguru.com/forum/s...ad.php?t=12211
Gnostic uses mo/war to farm, perk of that being they have knockdown immunity so can farm more places safer.
I use a ele/mo, more mana, less protection, same healing.