I have Kocsis Philips, Kovacevich, Anda DG & Neos, Jandó, plus Pollini 1+2 and some isolated recordings of 3. I presumably thought all of them were good enough to keep at some point (something I evidently didn’t think about the Boulez multi-pianist set, or Bavouzet, or Sandór, or maybe those just slipped through the cracks). I will listen to all of them in close proximity someday and see if I can identify any major drawbacks. But thanks to his very detailed interpretive markings Bartók is quite easy to interpret correctly; it’s something I have always appreciated about his music.