Strangely enough, I have one Mamiya, one of the three 110 cartridge slrs ever made. A few Mamiya lenses, and that's it. Lots of Nikon; F, F2, EL, EM, a Nikkormat. When I was shooting film, a Nikon EL2 was my favorite camera; rock steady, well-built, and easy to use.
I like Pentax digital SLRs better than Nikon DSLRs, though. My current Pentax, the K3, actually has better image quality than Nikons costing hundreds of dollars more.