Epic levels are on the horizon, and I have a suggestion.
Let Epic XP system encourage (or require) characters do a range of quests.
Please do not create a system that rewards repeating (the fastest/easiest) epic quest over and over.
Make Epic XP more like favor currently works with a reward for doing as many quests as possible.
Do not make it like the Heroic XP system with more xp/min for running certain quests (SC anyone?) over and over.
I fear a Stormreach in which only a few of the epic quests ever get run.