Fun is not a criterion for a trial in a championship. And if it should not be the only one.
Do not make a league for fun, you do to compete. And even if you try to offer fun, people will compete for prizes and prestige.
I was impressed with the graphics of some games, as the new market for the games so cherishes. We want something that makes our eyes shine and a sound that put us in the game, if you combine a good gameplay, we have a perfect game like Chrono Trigger.
Do not get me wrong, but I want you to know that a championship is to compete, and losing is not fun.