One thing to keep in mind, if you do decide to do the Warzones to get either of the 2 PvP companions, make sure to pick up the daily and weekly quests. Between rewards for running the warzones, the daily and weekly quest rewards, and the rewards for the companions quest, you will end up with enough Warzone Commendations to get a full set of the basic PvP gear. So if you find you don't mind PvP as much as you thought, you are geared to enjoy more of it.