In terms of per hour potential honour earnings, yes AV is the best. The best way you as a boxer might maximise your AV honour (despite win or loss) is by capturing towers, I believe one capture alone is worth around 400 honour now.

Run Wintergrasp every 2.5 hours if you can, wintergrasp marks will be exchangeable for 'Titan Forged' epic trinket/boots/helm in an upcoming patch, plus there are two or three pvp dailies there which give you a daily boost of around 4k honour.