most detailed: ypsilon, but not by much over the RS1e to me but it could also be the genre of music, with classical the RS1e sounds a little more detailed to me due to the better extended highs and better sound stage but with jazz, pop, rock and most other genres the ypsilon is quite detailed, more so in the lower range where the RS1e is more mid bass centric.
best imaging: RS1e
Thanks. That was what I was thinking. The Ypsilon is very detailed but does do imaging as well...even compared to Nhoord (I think).
I'm building another set of customs for the Ypsilon and will be able to compare it directly with the Nhoords.
As for the RS1e, I have a friend who just got it so I'll compare it at some point.