I have never heard a recording of S13 that I like as well as Rostropovich/Ghiuselev/National Symphony of Washington. It's available on an ArkivCD.
I am not generally a fan of Rostropovich's conducting, but everything just came together in this recording. The soloist is outstanding, powerful, beautiful and always on pitch, the conducting is committed, the orchestra is excellent, and the engineering, clear and deep.
I have not heard all the recordings others have mentioned, but the only one I have that approaches the Rostropovich is Okko Kamu with Nikita Storojev and the City of Birmingham Symphony on Chandos (out of print).