Haha, I did mean that HD800(S) is the endgame headphone for Stratus, but not the other way around. For me, endgame for HD800(S) would be something like DNA Silver Stellaris or EC Studio amp. What I meant was: if Stratus were your fixed amp, then you can't get better than HD800(S) with it. The reason I'm saying HD800(S) is because I used to own the HD800 but now the HD800S.
Based on preliminary reviews, the Utopia seems to best the HD800(S) in many ways. However, this was often the case when both headphones were served by solid-state amps that are inferior to Stratus. While I believe the Utopia could outperform HD800(S) when driven by lesser amps--heck, even I would take HD600/650 over HD800(S) on lesser SS amps--the thing about the Stratus is that it is a very high-end, even considered endgame by many, tube amp that supposedly has an incredible synergy with HD800(S) that allows it to scale tremendously to stratospheric heights. Also, I've read that Utopia sounded better on a high-quality solid-state amp than a tube amp (both of which were $3-4K+).
I know for a fact that Utopia > HD800(S) with lesser amps, and especially SS amps. But the Stratus is an amazing tube amp that loves HD800(S) like a match made in heaven. So what I'm wondering is, despite Utopia's affinity to SS amps, and despite HD800(S)'s clear advantage over Utopia in terms of synergy with Stratus and how it well scales with it, the Utopia still bests the HD800(S) in many of the aspects you described above?