I can't comment on the Fuji film, as I have not yet tried it. On the Delta 100 vs. Pan F Plus, I can fill you in on a few details.(posted 8408 days ago)Pan F Plus is slightly finer grained than Delta 100. Delta 100 is considerably sharper than Pan F Plus, and in fact, not counting the new Fuji film (which I don't know about yet), is the sharpest pictorial film on the market. Delta 100 also has greater contrast through the midtones and highlights. This allows greater separation for uses such as landscapes, but the contrast in the highlights makes it less suitable for some high-key subjects. And obviously, Delta 100 gives you another stop of speed.
David Carper ILFORD Technical Service