It depends on what you mean by "better". WoW certainly eclipsed UO in popularity/playerbase. Eve has a more sophisticated metagame. UO is definitely the best Ultima Online game ever created.
Yes, if you're talking about reliance on your fellow player, nothing I've ever played beats Eve. What goes on behind the scenes of a large corp is similar to a real world company or even government, including custom software to help manage it all.
