You should add the Green Mountian Audio Callisto to your list. It would best the other three in my opinion quite easily if reproducing whats on the recording is your objective. Do a search here for others opinions on this speaker or read Paul Candy's review on 6moons.com here:
http://www.6moons.com/audioreviews/gma2/callisto.html
http://www.6moons.com/audioreviews/gma2/callisto.html