Having a F90X and a FE2 I'd recommend the F 100. It's bigger and heavier but the viewfinder is much better and works great with mf lenses I don't miss the splitscreen on my AF body. It is very easy to focus on the screen and the electronic rangefinder is very accurate.
The F100 is also the cheapest way of getting full compatility backwards and forward since it takes both Ai- and G-lenses should you want to buy some of those. Yes you loose Matrixmetering with non-CPU lenses but its not a big loss.