Nice list.
Why is the levelrange of most dungeons so small? Seems like only one or two premier dungeons give a range bigger then 6. Could this be because dungeons are designed with the xp-needs of the player in mind?
In something that is supposed to be the habitat of a sentient species you would expect a pretty large level range, from small lizardlings up to the Ancient Guards. Hell, even a beetle-lair would show more range then that.
I understand that you can not make *all* dungeons into level 5-35 places, but I think this list shows you a lot of the "vision" that Vanguard was built on.