How homefield advantage should be determined...
Eliminate divisions in leagues.
Play a close to balanced schedule
Top 5 teams in each league make the playoffs
Top seed gets HFA regardless of win total. So if a 2-seed has 92 wins in the AL, and a 3-seed in the NL has more, it still goes to the AL. If it's the same seed and win total, then some other tie breaker would need to be implemented.