I can't comment on either of these, but I will give my opinion having read many books over the years on various work-out programs and done quite a bit of experimenting. Can't say how customizable either of these is, but I do know that a program that works for one person will not be as effective for another because of numerous differences from person to person. Without having an extremely competent trainer (a rare breed, IMO), if you want to create a good workout for yourself, you need to do research and trial and error, which most people won't take the trouble to do.
I'm a fan of Stuart McRobert's books since the mid 90s. He is a proponent of the major lifts, deadlift and squat, among others. Probably the most effective and common sense guidance, but these big lifts can cause injury if not done perfectly.
New Rules of Lifting by Schuler and Cosgrove is also good. Also like the program in The New Power Program, Protocols for Maximum Strength by Colgan, but I found some of his superset recommendations are difficult to do in a moderately crowded gym.
I think the best approach, which many would not consider, is to focus on the process as well as the results. If you consider yourself as always a student of weightlifting and are willing to do your own research you get more out of the activity and are more likely to reach goals, and then go even further.