Honestly, the best playoff solution would be to admit the Top 5 winning teams in each league, regardless of division, with the divisions only staying around for scheduling purposes (because you can't have West/East coast teams playing the same amount of games as teams that share coasts because of travel concerns).
1-3 get seeded like the current division winners, with 4-5 playing the 1 game WC game. And keep it at one game because baseball needs 2 guaranteed "win-or-go-home" games. A post-season without those is very underwhelming, IMO.
As it stands, I like the current format far better than the 1995-2011 1-WC/League format, which gave the WC teams far too similar a reward for not finishing 1st. Yeah, you have more security if two 100-win teams share a division, but despite the current A's predicament, I like that they are under pressure to win the division. It's a more "honest" finish to the season in my view.
BTW, applied to last season, my 1-5 ranking sans division titles format would have been identical to what occurred in the AL (1. Boston, 2. Oakland, 3. Detroit, 4. Cleveland, 5.Tampa/Texas) while the NL would have had the 1-game playoff be the Dodgers hosting the Reds, with the Pirates being the #3 instead of LA.
[ Edited by captveg on Aug 3, 2014 at 1:56 AM ]