I have seen the Gold Sheet on occasion, but I can't remember enough of the details to be able to make a worthwhile comparison. As I said in my earlier post, you can download a free sample issue of the Power Sweep from their web site at ncsports.com.
Northcoast Sports is run by Phil Steele, if you have ever heard of him. The Power Sweep is a very comprehensive publication and I read it from front to back every week. Although I do not go by the selections in it, I do read his write-ups because he usually has good information, such as trends, injuries, and how he thinks back-ups will perform in terms of experience and prior performance.
He also has all the high level stats (FDs, RY, PY, Comp\Atts, and the like) from all the previous week's games, college and pro.
I think any serious football bettor would enjoy the publication.