"Earl Wild was one of the great pianists of the 20th century"
Hard to argue with that statement and, FWIW, he was made in America. :-)
I'm very partial to his recordings for solo piano, and especially his transcriptions. Easy recommendations for 'Rachmaninoff Songs', a 'Schumann Recital', 'The Art of Transcripion - Live from Carnegie Hall', and a six CD set of Liszt including Transcriptions and Paraphrases.
I'm not sure how much of this is still in print, but if they can be found they are well worth hearing.
A couple of others I over looked worthy of mention - 'Earl Wild plays his transcriptions of Gershwin', and for Piano and Orchestra, Variations on an American Theme (Doo-Dah) and the Concerto in F. These Doo-Dah variations are unique - the disc, for no other reason, is a must have for Wild enthusiasts.
A recent recording of Wild's transcriptions/arrangements worth hearing and will give a fairly good idea of Wilds music in good hands (pun intented) Xiayin Wand's "The piano music of Earl Wild" on Chandos.