Rachmaninoff 18th variation

[clifw]

I wish to learn/memorize the 18th Variation on a theme of Paganini piano solo. I trying to chose between these two. What is the difference between the Robert Schultz version and the Loveridge version?  Also is there transcription of the 17th for solo piano, not 4 hands by Rachmaninoff? I would like to lead into the 18th with the 17th.

I appreciate any words of wisdom

Thanks,
Clifw