For the Scriabin sonatas:1: I don't know2. Richter3. Gould and Ashkenazy4. Berman & Ashkenazy5. Gould, Feinberg, Horowitz6. Richter7. Ashkenazy8. Sofronitsky9. Horowitz10. Sofronitsky
I think for the Scriabin sonatas, Hamelin and Glemser's sets (the latter is not complete) are the best you can do if you don't want to get a million different recordings. If you are looking at the piece for purposes of acquaintance, I would stay far away from the likes of Horowitz, for he sacrifices a substantial amount of accuracy to fulfill his musical wishes, as controversial as they are.Naxos is in process of recording all of his complete piano music, but from what I have heard, this is one case where the stuff that has been recorded the most is the best of what he has written, and the stuff that hasn't been recorded much isn't really worth hearing as much.