All just my personal opinion
Concert review, Monteverdi: L’incoronazione di Poppea @ KKL Lucerne, 2017-08-26 — Sir John Eliot Gardiner / English Baroque Soloists, Monteverdi Choir; Hana Blažiková (Poppea, Fortuna), Kangmin Justin Kim (Nerone), Gianluca Buratto (Seneca), Carlo Vistoli (Ottone), Lucile Richardot (Arnalta, Venere), Silvia Frigato (Amore, Valletto), Michał Czerniawski (Nutrice), Anna Dennis (Drusilla, Virtù, Pallade), John Taylor Ward (Mercurio, Littore)
Harnoncourt / Ponnelle’s legendary Zurich Monteverdi cycle on DVD — and memories of getting addicted to its live performances at the Zurich Opera in the late 1970’s
Der Ring des Nibelungen, part 4 — comparing 2 recordings: Furtwängler (1953, Rome), with Suthaus, Mödl, Greindl, Poell, Jurinac, Klose, Pernerstorfer, etc.; Janowski (1980), with Kollo, Altmeyer, Salminen, Nöcken, Sharp, Wenkel, Nimsgern, etc.
Der Ring des Nibelungen, part 3 — comparing 2 recordings: Furtwängler (1953, Rome), with Suthaus, Patzak, Frantz, Greindl, Klose, Streich, Mödl, etc.; Janowski (1980), with Kollo, Schreier, Adam, Nimsgern, Salminen, Wenkel, Sharp, Altmeyer etc.
Der Ring des Nibelungen, part 1 — comparing 2 recordings: Furtwängler (1953, Rome), with Frantz, Windgassen, Neidlinger, Patzak, Grümmer, Greindl, Frick, etc.; Janowski (1980), with Adam, Minton, Schreier, Nimsgern, Wenkel, Salminen, Popp, Schwarz