The NFL season ended Week 17 when the Rams were eliminated. Once the Rams are done playing, my passion for the league drops about 90%.
College hoops has my full attention from November to March, so i'm never bored because its on every night.
MMA is all year long, always a ton of fights to watch, just about every weekend these days.
Baseball is just around the corner, I can watch any baseball game and be entertained. Throw in a fantasy league or two, and every game is relevent. I haven't been this excited about baseball in a long time. The older I get, the more I appreciate baseball, and the less I care about some other sports (namely the NBA, which I really want to like, but end up liking less and less each year).