I like 15 for the following reasons:
1) I'm a bad team. There's not much to play for. Obviously this is irrelevant to a lot of you guys, but all of our personal views are playing into this.
2) Quicker seasons means quicker development of players, quicker occurrences of further seasons, etc.
3) Helps prolong the league, because the time spent per season goes down meaning we can fit in more seasons before mission goes insane.
4) We're near the middle of the year where micromanaging won't affect as much; maybe int he last few weeks we can go 10 games to make it better for playoff race teams.