All just my personal opinion
Media Review (Listening Diary) — Gringolts Quartet and Meta4 performing Mendelssohn Octet op.20 & Enescu String Octet op.7; comparisons with Emerson String Quartet (Mendelssohn), Merel Quartet & Castalian String Quartet (Mendelssohn), and Vilde Frang & Friends (Enescu)
Blog post #649 — #rolfsmblog •
Franz Schubert, String Quartet No.15 in G major, D.887 (op.116): a comparison of 3 recordings, with the Melos Quartett Stuttgart (1978), the Emerson String Quartet (1998), and the Artemis Quartet (2009)
Beethoven: String Quartet op.135 —comparing recordings with the following ensembles: Alban Berg Quartett (1982), Amadeus Quartet (1963), Artemis Quartet (2011), Busch Quartet (1935), Emerson String Quartet (1997), Endellion String Quartet (2005), Guarneri String Quartet (1969), Hagen Quartett (1990), Hagen Quartett (2012), LaSalle Quartet (1976), Leipziger Streichquartett (1998), Melos Quartett (1984), Quartetto Italiano (1968), Takács Quartet (2004)
Beethoven: Great Fugue op.133 — comparing recordings with the following ensembles: Alban Berg Quartett (1983), Amadeus Quartet (1962), Artemis Quartet (2011), Busch Chamber Players (1941), Emerson String Quartet (1997), Endellion String Quartet (2006), Guarneri String Quartet (1969), Hagen Quartett (2001), LaSalle Quartet (1972), Leipziger Streichquartett (2006), Melos Quartett (1984), Otto Klemperer/Philharmonia Orchestra (1956), Quartetto Italiano (1969), Quatuor Mosaïques (2016), Takács Quartet (2004)
Beethoven: String Quartet op.132 — comparing recordings with the following ensembles: Alban Berg Quartett (1984), Amadeus Quartet (1962), Artemis Quartet (1998), Busch Quartet (1937), Emerson String Quartet (1997), Endellion String Quartet (2005), Guarneri String Quartet (1969), Hagen Quartett (2003), LaSalle Quartet (1973), Leipziger Streichquartett (2001), Melos Quartett (1985), Quartetto Italiano (1967), Takács Quartet (2004)
Beethoven: String Quartet op.127 — comparing recordings with the following ensembles: Alban Berg Quartett (1982), Amadeus Quartet (1963), Artemis Quartet (2010), Busch Quartet (1936), Emerson String Quartet (1997), Endellion String Quartet (2008), Guarneri String Quartet (1969), Hagen Quartett (2004), LaSalle Quartet (1976), Leipziger Streichquartett (2001), Melos Quartett (1984), Quartetto Italiano (1968), Takács Quartet (2004)