I've been spending quite a bit of time listening back 'n forth between the Susvara & the SR-009 and I have to say it's a hard pick. For the most part, up front I'd probably reach out the Susvara more than the SR-009 however the SR-009 has its own quality traits that's not easily trampled by the Susvara. A lot really seems to depend on what kind of music I'm listening to and what kinda mood I'm in (or want to be).
One easily noticeable factor though that can be easily be put out of the way, the Susvara sounds more expansive and more "out of head" than the SR-009. The soundstage and depth is just simply larger. Where the Susvara sounds like listening to a live presentation sitting a few rows back, the SR-009 is more like listening to mastered recording. With that though each has their own traits - the SR-009 is impeccably detailed as the proximity of the instruments and vocals are just (virtually) closer. The Susvara on the other hand feels more musical with all the moving parts moving together in a single coherent piece. The details are noticeable in a different way...through the precision and placement of instruments in the virtual stage the Susvara has presented. Instrument separation and distinctive placement on the stage is extremely precise.
Where the preference of genre and "mood" setting seems to be in the tonal differences of each headphone. The SR-009 seems to have a fuller mids (and as discussed with another member) possibly even a slight hump around the 1kHz whereas the Susvara is the opposite where the mids is a tad dipped. It's not an outright U-shaped but vocal presentations do feel a little less "personal" than the SR-009. Where I'd describe the Susvara to sound rich across the FR board, the SR-009 on the other hand sounds more vocal midrange full. Listening to something like say my 80's pop (Tears for Fears Song from the Big Chair) the Susvara sounds more "pop" and would be my preferred headphones. On the other hand listening to Tony Bennett (The Ultimate Tony Bennett), the vocals sound feels more engaging on the SR-009. And with classical (Vivaldi's Four Seasons Storm At Sea), I could go with either depending on my mood. The SR-009 seems to have a somewhat underground chamber-like with reflections back off the walls of a smaller virtual room, which sets a "darker" more "moody" feel in me. The Susvara on the same album on the other hand, seems to set a more "morning air freshness" crisp presentation.
At this point, each headphone has its place and it's not as simple as one besting the other. I'm probably ready to let my Utopia go though at this stage.