I'd also say that, some pianists from the earlier part of the 20th century played quite closely to the style typical of today's performers, i.e. without the extreme rubato, arpeggiating of chords, and asynchronization of hands typical of some of the pianists in the earlier part of the 20th century. I'm thinking particularly of Rachmaninov
Really? This dude?http://www.youtube.com/watch?v=kj3CHx3TDzw
Interesting! I'm hearing arpeggiating of chords, asynchronization of hands and rather peculiar rubato all over the place!
I hear lots of arpeggiated chords, very slight asynchronization, and reasonable rubato much closer to rubato typical of modern pianists. I don't think he played nearly as much arpeggiated chords as in this Nocturne in much of his playing but it's possible. I reasonably certain that Rubinstein didn't arpeggiate and the same for Horowitz(although I have noticed some performances where he used asynchronization but still nowhere the level of a Paderewski).
Here are a few Rachmaninov recordings I just listened to particularly for rolled chords, asynchronization, and extreme rubato.
This famous Rachmaninov recording of Carnival seems to have virtually no arpgeggiation, asynchronization, or early style rubato:http://www.youtube.com/watch?v=HkxwutQXxs0
I only heard two rolled chords and no rubato or asynchronization in this performance of Bach transcribed by Rachmaninov:http://www.youtube.com/watch?v=Firnn9Cfb3w
I heard around two rolled chords, no asynchronization, and no extreme rubato in this performance of his Elegy:http://www.youtube.com/watch?v=nrOp4TeG100
No rolled chords, asynchronization, or extreme rubato in his performance of the Funeral March from Chopin's second Sonata:http://www.youtube.com/watch?v=_TbIBqTBM4Q