My favorite camera, the one I would run back into my house to get if the house was on fire, is probably my Canon FX. Sentimental value. Followed by my Yashica 635 TLR, same reason.
My favorite cameras in terms of the ones I use seem to show where I'm at with photography at the moment.
1) Pentax K-50
2) Pentax *ist DS
3) Pentax K-x
4) Yashica Lynx 14
5) Konica I post-WWII fixed-lens rangefinder, Hexar 50mm f/2.8
I do shoot mostly digital these days, and I love my Pentax dSLR cameras, especially the oldest ones (feel great in my hand, everything just seems to be where I want it to be in terms of controls). I've just moved to a new house and am digging out my camera gear and will be setting my B&W darkroom and film scanning equipment back up as a winter project. Hope to do more with B&W in 2019.