People don't like 24s because they have an advantage unavailable to 20s. I have to admit, a lot of games do end up with farming, but 24s aren't going to stop that. Both sides get 24s. Like it or not, they are part of the landscape. I did a game against eight hunters one priest, one rogue. Give me 24s any day over that mess.
Both sides get 400HP no talents (spec) no mount and no idea how to play the game. Just like both sides get 24s. Both detract from the ideal experience if you ask me. My most enjoyable games weren't always wins, they were even matches where it felt as though what I did actually had an impact on the result of the game. AFKing near the GY while hunters farm is no fun either. Neither is getting smashed by 24s, hunters, multi-boxers, all of whom move in packs with healers.
Also, we need more AB.