I have a plan that will help everyone.
Kick the yankees out of MLB, let them have playoff games against little league teams and they can crown themselves champions for life.
I think the reasoning for the divisional format is to keep fans from different geographic regions interested in the playoffs. People might start to lose interest if the AL playoffs were dominated by the mega-market teams from the East Coast. Divisions ensure that at least one team from the Midwest and the Western U.S. will be represented. If you want to even things out a bit to make them fair, dump the unbalanced schedule and interleague games. The more teams play games against other teams in their own league, the more likely the wild card truly reflects the best non-division winning team.
Burn down the disco. Hang the blessed DJ. Because the music that he constantly plays, it says nothing to me about my life.