All just my personal opinion
Gustav Mahler, Symphony No.8 in E♭ major (“Symphony of a Thousand”) — Riccardo Chailly, Lucerne Festival Orchestra (Lucerne Festival 2016, Opening Concert in the KKL); with Ricarda Merbeth, Juliane Banse, Anna Lucia Richter, Sara Mingardo, Mihoko Fujimura, Andreas Schager, Peter Mattei, Samuel Youn, Chor des Bayerischen Rundfunks, Latvian Radio Choir, Orfeón Donostiarra, Tölzer Knabenchor. Blu-ray disk, received for reviewing.
Schumann, Symphony No.1 in B♭ major, op.38 — comparing 5 recordings: Bernstein / Vienna Philharmonics (1984); Harnoncourt / Chamber Orchestra of Europe (1996); Gardiner / Orchestre Révolutionnaire et Romantique (1997); Zinman / Tonhalle Orchestra Zurich (2004); Dausgaard / Swedish Chamber Orchestra Örebro (2007)
Ludwig van Beethoven: Symphony No.7 in A major, op.92 — comparing recordings with the following artists: Bernstein/New York Philharmonic (1964), Bernstein/Vienna Philharmonic (1978), Böhm (1972), Dausgaard (2001), Furtwängler/Vienna Philharmonic (1954), Hogwood (1989), Kleiber/Concertgebouw (1950), Klemperer (1955), Norrington/RSO Stuttgart (2002), Toscanini (1951), Walter/New York Philharmonic (1951), Walter/Columbia Symphony Orchestra (1958), Zinman (1997)
Mozart: Violin Concerto No.5 in A, K.219 — comparing two non-HIP recordings with the following artists: Pinchas Zukerman / Saint Paul Chamber Orchestra (1982), Vadim Repin / Yehuhi Menuhin / Wiener Kammerorchester (1998)
Beethoven: Symphony No.3 in E♭ major, op.55, “Eroica” — comparing recordings with the following artists: Bernstein/New York Philharmonic (1964), Bernstein/Vienna Philharmonic (1978), Böhm (1972), Dausgaard (2006), Furtwängler/Vienna Philharmonic (1948), Furtwängler/Berlin Philharmonic (1952), Hogwood (1985), Kleiber/Concertgebouw (1950), Klemperer (1959), Norrington/RSO Stuttgart (2002), Toscanini (1953), Walter/New York Philharmonic (1941 & 1949), Walter/Columbia Symphony Orchestra (1961), Zinman (1998)
Mahler: Symphony No.5 — comparing recordings with the following artists: Walter/NYPO (1947), Haitink/Concertgebouw (1970), Solti/Chicago SO (1970), Abravanel/Utah SO (1974), Sinopoli/Philharmonia (1985), Bernstein/VPO (1987), Abbado/BPO (1993), Zinman/TOZ (2007)