I've worked with Rebel, American Autowire, Ron Francis and YnZ kits. YnZ was awesome for a high-end restoration of my 58 Buick.
Rebel 9+3 worked great in a simple '32 Ford truck hot rod.
AA & Ron Francis were on a couple of other cars I did for a friend of mine.
I prefer the AA & Ron Francis kits for the documentation and how many options they offer, but i thought Rebel was the best bang for your buck if you already have a lot of the switches and other components.
I prefer & use Rebel Wire... the writing on the wire is larger & their tech Jeremy is the best & nearly always available!
BoB