dont know if thats intended:
highest mob level in Mt. Killjoy is a lvl 51 red dragon
highest mob level in Lakeview is a 55 duck...
-> much more xp/gold in lakeview...
on the other hand:
lvl 50 rewards for resolving puzzles in Mt. Killjoy (incl. gold, xp, loot drops, etc.)
BUT lvl 5 rewards in lakeview ("small wand of life +1")
so... gonna stay for a while in Lakeview now