Quote Originally Posted by Senzura View Post
Like I said, you'll find no definitive answer on efficiency.
Time to prove you wrong.

Palace is the easiest of the 4-man dungeons and provides 40 tomestones. Amdapor is the hardest of the two and provides the same amount but has a boss, the demon wall that will stop unprepared parties and be really tricky to do without a melee in the group. Both runs can take about 30-40 minutes and trash can be skipped in both (Before the pudding in Palace and all 3 bosses in Keep) knocking maybe 10-15 minutes off both.

Castrum Meridanium and Praetorium are the 8-mans and are equally easy with simple mechanics providing 100 tomestones each. Praetorium, with cutscene skipping and no hiccups on Ultima Weapon's second half can actually be completed in about 35 minutes.

Praetorium is roughly 8 minutes longer than the 4-mans without any hiccups and speed running in all the dungeons and at 100 stones it completely outclasses the others.