By far, the best guy on here for college fb (in terms of consistency, honesty, etc) is boxslayer. He has been here a while and is completely straightforward and solid. Also there is little drama with him (as compared to some of the other successful cappers on here) and he posts his picks week in and week out in a timely manner.
Some of the others are ok, but honestly my best advice for now would be to tail boxslayer and boxslayer only. I haven't seen anyone else this year that has the consistent track record.