I got started with Nikon in the early 70s but Minolta was more affordable and had excellent glass.I added Nikon a while back.My go to cameras are Minolta XD-11 and Nikon FA. I have others I use depending on what I'm shooting. Outside of them I have a Leica R5 I use on occasion.
Medium format its Hasselblad.
4x5 I use Cambo which is nice, but I have an eye out for a Sinar.