I get to try a lot of digital cameras as part of my day job. I've field-tested the Canon 20D and 5D, Nikon D50, Kodak V570, Pentax *ist, the Ricoh GR Digita, and the Sony R1, among others. So, what's my favorite camera when I'm not being paid to shoot?
A 50-year-old Leica M3 with a 28mm f/3.5 Kobolux lens! Its mechanics still work, and I've only had the camera in the shop three times since I acquired the camera in 1978. For years, my film of choice was Ilford HP5, then HP5 Plus, developed in Ethol UFG, but in recent years it has been Fuji Press 800 color print film, which I have processed at a minilab and then scan and convert into black-and-white in Photoshop. Why the change? Simple: Color print film has a 5-stop latitude, giving me a better range of highlight to shadow detail than any B&W film, and the starting ISO is 800. I've done side-by-side comparisons, and the grain in the Fuji Press is noticably lower than HP5 pushed to 800. And I like having the extra stop.
What system do you use?