Archaeology is only worth it if questing isn't working well and/or you have artisan flying. Questing is the best and safest when Honorbuddy is at a stable release as well as Kickazz's profiles. I did a bit of grinding personally at 80-85 to speed it up and not get stuck in a quest, not for too long though because it can be risky. The only safer, quicker thing is five RAF accounts all partied together running instances.