The best speakers I have heard are my friend's TLS-1's (based on the original Ohm F) made by Dale Harder of HHR in Ohio. I haven't heard anything that sounds that realistic and natural.
Vandersteen 7's would also be up there.
I have owned Vandersteen 1's, then 2ce Sig II's, briefly Tekton Electron and Paradigm 75F, Kef R7, then traded up to the R11 which I am enjoying very much at the moment.
I would love to hear ATC SCM19's as they seem to come up frequently here.