I bot randoms as i think its safer. and its not a big difference if ur battlegroup blows. either way i earn 200+ honor a match. being in av i earn that same amount. its just choosing av you dont get the end honor/conquest if you win.
Good grief, I've botted BGs for entire weekends without so much as a whisper or a glitch. Maybe I've been lucky, but I think with the right CC and plugins you're as good to go as any other bot base.
Botting BG's is by far the safest way to get from lvl10-85. In my experience, on a AV weekend, if you bot the entire weekend no matter where you start you should be lvl79-85 by the time the weekend is over. My advice if you BG bot is to convert your honor into JP as you level so when you hit lvl85 you can either buy a few pieces of PvP gear then convert the JP back to honor to get 1more thing. Or buy some JP gear. Your call.
My best experience is always bot the 40 mans. It's always more wide open, you can go almost the whole BG without getting seen by anyone sometimes. I hate doing random bg's queueing into twin peaks or WSG. You'll always get called out for having "bot" like behaviors (like not responding when asked to go offense and such).
I have yet to bot a bg, but I did see a pally in IoC in a random location, not moving, but turning in never-ending circles on the spot. Don't let that be you!