I found this thread comparing character customization in WAR and WoW pretty interesting. Personally, my shaman is specced for damage so I can solo quest but I find it pretty fun in pvp/rvr as well. I can throw my hots on anyone taking damage, try to save someone who’s really hurting with my direct heal, and help kill enemies who are low on health.
One of the comments on that thread was that changing tactics and morales can make your character feel totally different. Having recently swapped out my rank 1 morale direct heal (that instand direct heal was a big one) for Gork Sez Stop, I pretty much agree. I’m definitely less of a healer now even though the morale only pops up once a minute.