Don`t know if you have seen these reviews Doug but I find them very good and in depth.
http://www.photozone.de/8Reviews/index.html
All the lenses you have mentioned all look like keepers..
I went for a 200 2.8L and its a beauty! Would love to get the 85/1.8 or the 100/2. I don`t think you can go wrong with any one you get..
cheers