I think of makeup, skincare, and bath & body as separate entities within beauty. May answer is which one brand I would choose for each of those categories.
Makeup:
Bobbie Brown. Of all the brands sold on QVC Bobbi'e is the most inclusive with makeup which flatters the skintones of women of color-- and I'm not just talking about foundation.
Skincare:
Ole Henriksen. As much as I love Josie's Argan Oil and Philosophy's Purity and Micro-Delivery Wash I don't use any of their other skincare products. I use several of Ole's products, and I have tried his cleansers when one is included with a set. They are good cleansers, so I know my skin wouldn't suffer from using them exclusively.
Bath & Body:
Philosophy. The second runner up in terms of who has the most containers in my bathroom presently is a line not sold by QVC.