Quote Originally Posted by Smedbox View Post
I tried Kings Breach last night, with three level 36 and two level 50. All three had full rest XP but used no potions. They got about 60-70% of a level, clearing the dungeon and completing the three quests in there. I'll do it again tonight without any of the quests and clearing it as fast as I can to see what XP/hour I can get...
I did Kings Breach again two times last night. Again with full rest XP and no potions. Without the quests, they got 50% of a level each run. It took me about 30-40 min to clear the dungeon with this group, so it's about 1 level per hour. If you don't have rest XP or potions, it would be half a level per hour.

It's worth it to note that you don't lose any rest XP while you're PvP:ing, so it's a good idea to alternate between dungeons and PvP - PvP:ing to gain rest XP then into a dungeon to spend that on killing mobs.