[scrabblehack]

I like it.

6 divisions of 5 teams each.

Let’s see...
6 series against your own division.
2 series against teams in your league not in your division.

During intradivisional play, the odd team out would be playing the opposite league.

Say Mets vs. Phils, Nats vs. Braves, Yanks vs. Bosox, O’s vs. Jays, then Marlins would play Rays.
The next series might be Mets vs. Nats, Phils vs. Marlins,
Yanks vs. O’s, and Bosox vs. Rays. Jays would play Braves.

If you wanted to minimize travel, there would be one team in the opposite league a team would play twice (Yanks-Mets; Cubs-Chisox, etc.)

But then there would be one series left — I figure this one would rotate around the rest of the opposite league. So it would take 10 years to play every team in the opposite league.

The other option would be to not play that one team in the opposite league twice; then it would take 5 years to play every team.

[Alberta's Child]

The major flaw with inter-league play is that a team's record for the season can come down to the quality of the teams they play in the other league in that year. This was illustrated some years ago (maybe in the first couple of years of inter-league play) when the New York Mets had the best record in baseball in their intra-league games, but did so poorly in their inter-league games (they played the Yankees and Red Sox six times apiece that year, if I remember correctly) that they didn't even make the playoffs.