College baskets followed by college foots. That's just for me though. Since I am retired with not much to do, I am willing and able to spend the time necessary to get a leg up on the plethora of college basketball games available on the rotation. I work the hardest on this and NCAA baskets is what I wait for.
I have as of this season, given up on the NFL.
As for baseball and hockey, although I have played both sports at a relatively high level,and they were probably my favorites certainly in terms of actually playing the games, I can't seem to break even in bases over the course of the season. Even a 2 month layoff I took this year didn't help much. This may be because I have a much harder time betting on moneyline dogs than I do pointspread dogs. It's just a mental thing with me.
Hockey and the NBA, I have dabbled in with little if any success and this I attribute to the focus I put on college basketball.
I am 3-0 lifetime on Nascar bets BTW.