[BostonCard]

Yeah, I like 10 teams because you can have a true round robin.  Twelve is also doable because you can break it up in two divisions and play round robin within your division and 3 or 4 of the teams in the opposite division and then have a real conference championship.  Downside is that sometimes one division (hello Pac-12 North for like the first half-dozen years of the Pac-12) is much stronger than the other so the championship is not necessarily the two best teams.  Secondly, you don't have a true round robin, so you can get screwed with the schedule.

But beyond that it gets unruly.

BC

[BostonCard]

Yeah, I like 10 teams because you can have a true round robin.  Twelve is also doable because you can break it up in two divisions and play round robin within your division and 3 or 4 of the teams in the opposite division and then have a real conference championship.  Downside is that sometimes one division (hello Pac-12 North for like the first half-dozen years of the Pac-12) is much stronger than the other so the championship is not necessarily the two best teams.  Secondly, you don't have a true round robin, so you can get screwed with the schedule.

But beyond that it gets unruly.

BC