ATC SCM 100 VS. Vandersteen Model 5's

Hi everyone. I am a new member to this forum, although I have read many threads for almost 2 years. I am in the process of purchasing new speakers, namely the ATC SCM 100 passives and the Vandersteen Model 5's. I currently have a demo pair of ATC SCM 50 active's in my listening room, however there is no dealer here in my location who sells Vandersteens. If there is anyone who has experience firsthand with the above and can comment on strengths and weaknesses of the speakers when compared to each other in terms of dynamics, soundstaging, imaging, sonic accuracy, that would be muchly appreciated. My current electronics are:
Blue Circle Galatea(balanced version) preamp, Simaudio Eclipse CDP, Clearaudio TT and Simaudio Moon W5 amplification.

Best regards
Rod