For AV i see 2 possible improvments:

- scale the npc's with the gear upgrades. They are not hard enough to kill. It's my understanding that they remained the same throughout many gear levels. This should avoid most of the rushes.
- allow bigger groups to queue up (instead of the current 5), i.e. raids. This might have the side effect that people no longer willing to pug an AV.

When i see i'm up against a premade, i just leave. On 3 occasions I made our whole team leaving, so the premades could whack of for honor