I use a 28-105 on my F100 as my main go to lens. However, I just picked up a couple months ago or so a used 28-200G lens and I have to say is that I like this lens for the additional reach.
I have found the distortion and the addition of the close focusing macro mode (50-105mm range) allowing 1:2 reproduction (sharp center, soft corners but acceptable for most macro save flat field reproduction).
I have no problems with the G lens on the F100.
While the 28-105 and the 28-200 overlap, I don't see myself dropping one in favor of the other, different tools for different uses.