I have heard many different concerts/recordings of Chopin Piano Concerto No.2, but the very, very best I have ever heard is definitely the LP (Music For Pleasure LTD, EMI Records Limited) recording from 1960 by Malcuzynski together with the London Symphony Orchestra under Walter Susskind.
This recording is in my opinion still the absolute perfect recording. Everything on this record is just perfect: Malcuzynsky at his most sensitive best, together with the London Symphony Orchestra at their very best, tonality (humidity etc.) on the day of recording for all the instruments at its very best, together with the tone-engineers at their very best, in fact, in this recording everything is just perfectly “jellying together” on a perfect day. It certainly could not have been done any better.
There is one problem though, if you have heard the very best of Chopin Piano Concerto No.2 : every other recording/concert becomes only second best with a huge gap in between...
By the way: I remember noticing this record in a junk-shop and the cover looked so meaningless with a colourful ridiculous-looking fan at the front and I remember wondering whether I should bother to buy it or not, but fortunately my curiosity took over and I bought it for a few pence.
I am so glad that I did because it just proves again that one should never be fooled by a ridiculous looking front-cover, because it gave a chance to discover a real gem inside...