Oh my, this is a loaded question if I've ever heard one. Let's see.............
8X10 Kodak 8x10 2D Hmm? Nice, but long gone.
M2 Leica w/Summicron That and many other Leicas.........most long gone.
Big Fuji Range finder cameras.............love them, but no.
Hasselblad SWC very awesome and still have it.
The Kodak Medalist I and II are at the very, very top of my list and would get my number one vote if it weren't for one camera. So, of all the cameras I presently own I'd say the Kodak Medalist is my very favorite, most awesome, camera and it performs as good as anything I have ever owned. New or old!
Here it is! My first pick.
Now, I hope you are sitting down for this. That one camera is a Herbert George Imperial Satellite 127 Boy Scout version that got me started in this whole mess. I bought it C.O.D. off the back of a Grit Newspaper when I was about 9 or 10 years old and that was 1959 or 1960. Do I still have it? Nope, but I wish I did. I dug through my mothers attic several times, but alas it's gone. My mom had a couple of yard sales while I was in Vietnam and I'm somehow missing that camera and several Velveeta cheese boxes full of baseball cards???