I follow Sherwood in NHL. He's Canadian, and they tend to know their hockey, and he's had some very nice seasons. His picks are reliable, they get posted about 11 am on his site, and he usually posts them here too.
I don't follow anybody in NFL.
I like to not be against Spreadbeater in NBA, but his picks come out at inconsistent times. I would follow Omni-Frog if I could get his NBA, but he has not been posting anywhere I know of. I bet a lot of my own stuff for H2. I prefer to see how the 1st half goes with NBA.
There are several baseball guys that I don't want to be against esp. Tomorrows Newspaper, Sherwood is good in bases too. Journeyman was pretty solid. The thing is I often bet overnite on games I think will move, but you can change positions easily in bases with Matchbook, as long as you get the moves mostly correct. Cutter from LVA is another solid bases guy. I pick a lot of my own, but these guys can get me off a play at times.
I'll tail Railbird on some stuff, if I see his posts. I don't do much with college sports, esp. football