Check out the music from #'s 4, 5, 6, 7, 8,9, and 10. Physically they are very difficult, harmonically they are very difficult, rhythmically they are very difficult, and I would imagine that trying to play these pieces musically would be a superhuman feat that few have completed. Ashkenazy made a recording of all of them, and they are all very good, but the seventh seems to have a few problems, and Horowitz's recordings of the ninth and tenth seem much more sensical and coherent to me. the fifth is definitely my favorite. It seems very organic, and seems to convey the sense of ecstasy that Scriabin always tried to communicate through his music. If you have never heard these sonatas, buy them, and then listen to them quite a few times. When I first listened to them I didn't understand them at all, but now they make perfect sense.
Scriabin was a genius WAY ahead of his time, and most people just couldn't keep up with him.
Chop