I've been trying to stay away from my F's, but they just have some sort of magnetic power. I think I do better pictures with a Leica or Rollei for some reason, but just can't let go of the F's. No other SLR feels as good to me. And the simplicity of a prism F is right up there with the Leica M2.
I think a lot of the old photojournalists had it right when they carried a Leica for 50mm and shorter, and an F with a 105 (and often 200mm in reserve).