All just my personal opinion
Robert Schumann’s Cello Concerto in A minor, op.129, in the new recording with Jean-Guihen Queyras and the Freiburg Baroque Orchestra, directed by Pablo Heras-Casado, compared to legacy recordings with Gregor Piatigorsky & Sir John Babirolli / London Philharmonic Orchestra (1934) and Mstislav Rostropovich & Gennadi Rozhdestvensky / Leningrad Philharmonic Orchestra (1961)
Comparing recordings with the following artists: Casals/Horszowski (1939), Fournier/Schnabel (1948), Fournier/Gulda (1959), Fournier/Kempff (1965), Harrell/Ashkenazy (1987), Isserlis/Levin (2012), Maisky/Argerich (1991), Perényi/Schiff (2004),
Queyras/Melnikov (2013), Rostropovich/Richter (1962), Wispelwey/Komen (1991), Wispelwey/Lazić (2004)
Comparing recordings with the following artists: Casals/Schulhof (1930), Fournier/Schnabel (1947), Fournier/Gulda (1959), Fournier/Kempff (1965), Harrell/Ashkenazy (1987), Isserlis/Levin (2012), Maisky/Argerich (1993), Perényi/Schiff (2004),
Queyras/Melnikov (2013), Rostropovich/Richter (1961), Wispelwey/Komen (1991), Wispelwey/Lazić (2004)
Rachmaninoff: Piano Concerto No.3, op.30 — comparing recordings with the following artists: Rachmaninoff/Ormandy (1940), Ashkenazy/Previn (1972), Argerich/Chailly (1982), Kocsis/de Waart (1983), Wang/Dudamel (2013)
Chopin: Piano Concerto in E minor, op.11 — comparing recordings with the following artists: Argerich/Abbado (1967), Askenase/Otterloo (1960), Avdeeva/Wit (2010), Avdeeva/Brüggen (2012), Rubinstein/Barbirolli (1937), Rubinstein/Wallenstein (1953), Rubinstein/Skrowaczewski (1961)
Prokofiev: Piano Concerto No.2, op.16 — comparing recordings with the following artists: Yundi Li, Seiji Ozawa, Berliner Philharmoniker (live, 2007) / Yuja Wang, Gustavo Dudamel, Simón Bolívar Symphony Orchestra of Venezuela (live, 2013); comments on “blind” comparisons on the radio