All of the house brands have different origins, and different chemical make ups (or at least originally they did). You can read the history of the brands on their respective landing pages.
For instance, Pinnacle is an all American certified made in USA brand based on natural ingredients. Wolfgang uses German polymers and was originally formulated by a chemist named Wolfgang. DP is a line that is geared towards professional detailers. And then Blackfire is a line they acquired and revamped which is based on a proprietary polymer formula. There is some similarity and quite a bit of overlap among some of the products. Overall, I have not been dissapionted with any AG product and use many of them often on my vehicles, including Fuzion, XMT Spray Wax, DP Auto shampoo to name a few.