gekic is the one who plays the ocean etude really softly , right? really nice effect, but not original, fiorentino did this too.
cziffra is the one set i couldnt live without, although generally gavrilov is the best, cziffra is head and shoulders above the rest in certain etudes.
pollini IS really good, and so is perahia, really good reference recordings, but still cziffra is the no1 for 'oomph'