CBS Sportsline’s Fantasy Football Commissioner on-line league manager site is the best on the ‘Net bar none.

They have the most extensive rule customizations / scoring system.  Here’s one example of this.

In our league, in previous years, we’d end up having a few games resulting in a tie every year.  Not only for that reason, but to also have more accurate score for a player’s performance, with Sportsline we were able to implement a decimal system last year (i.e. .04 points for every 1 passing yard).

Through this Quizno’s promo link, you receive $50 off the regular price ($149.95) to start a new league.  If your league is not with CBS Sportsline, and you’ve considered moving it, now is the perfect opportunity.