Even FFXI abandoned the inefficient 6-man exp party in favor of the 18-man alliance based exp fest in Abyssea. Good riddance.

It's easy to romanticize it until you sit down and remember that you got 4,000 exp/hour in Crawler's Nest. No thanks, never again. Do not want.

Back in 1.0 there was leve sharing - is that still a thing? I can't remember.