Which service do you have the most faith in. A few years ago I would follow Dr. Bobs pretty closely but my bookie (cough cough MBKRogers cough cough) would adjust the lines. Anybody whose opinion you take to heart?
Football not so much. But IMO the best service out there for any sport is RAS College Basketball. The first couple months the guy usually anniliates. The one book I used I just played RAS games and they blocked my account because of that.