Trick question? I'm rather OCD when it comes to collecting cameras. At the time of the post I own 22 35mm's. Each has a special "personality" that makes them all my favorite. Now, if you mean performance, reliability, lens selection, and plain bang for buck I'll choose my Nikon F4 and in second would be my Nikon F5. I really really love the F5 but... the F4 seems to be compatible with ever F-mount lens on the planet which makes it so versatile. The again... I do use the F5 more often.