In BG's (only lvl 39), I use pets as hand granades (with 50-70 yard throw range). I send pets at 50 yards and then just run away. If they try and stop to kill pets, I walk up to 38 yards and unload into them while healing pet (draenei). If they turn to me, fine, you can have few hits before I feign and you have to retarget me while pets are chewing you up. It takes a few times to get the hang of when to just let pets eat them and when to turn and fight. I am not saying this is the best way (not sure if you have room to run in arenas). Just saying, it works for me. Of course I get rogues on me cause they are the only ones that can get close without me seeming them. I just try to trap them (drop 3 and then 2 on castsequence) or just back up my alts and walk my main forward (so they can have range). They usually die. One quick bandage and move on. Even if they kill a pet, there are 4 others and I am still safe. And they are hurt. Again, might not be the best, but it works for me. I am more defensive than rush in and attack.