Trying it out this year and a half...

http://www.theasfl.com/asfl2/

They run from Jan 2012 to June 2013 in 23 official competitions and apparently some other bonus ones. They then weight things according to popularity (so fantasy football and baseball count the most, and fantasy golf counts less) and come up with an overall ranking. You don't have to play in all of the competitions either, so I figured I'd give it a shot and see what happens. First up is golf and the first unofficial is tennis.

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"All crowds boycotting football games shouldn't care who sings or takes a knee because they aren't watching." - Nas