I'm sorry to say they all sound weird and processed to me, but then I've never had much luck with most binaural processing.
But one thing I'd like to do sometime is play around with some HRTF impulses with a convolution plugin to see what I could get.
There's a collection of HRTF data here:
http://recherche.ircam.fr/equipes/salles/listen/index.html Sample files for 3D panning done with a variety of HRTF measurements (from different people) are available here:
http://recherche.ircam.fr/equipes/salles/listen/sounds.html The idea is to find one that matches well with you and go from there. Some of them are pretty good for me (when wearing headphones).
The corresponding IR files (at least that's what I think they are) are here:
http://recherche.ircam.fr/equipes/salles/listen/download.html I'd suspect the youtube music links were processed from 5.1 sources using some sort of similar processing.