All just my personal opinion
Beethoven: String Quartet op.18/2 — comparing recordings with the following ensembles: Amadeus Quartet (1961), Artemis Quartet (2002), Emerson String Quartet (1996), Endellion String Quartet (2008), Guarneri String Quartet (1995), Melos Quartett (1983), Quartetto Italiano (1975), Quatuor Mosaïques (2005)
Beethoven: String Quartet op.18/1 — comparing recordings with the following ensembles: Amadeus Quartet (1961), Artemis Quartet (2010), Emerson String Quartet (1996), Endellion String Quartet (2008), Guarneri String Quartet (1995), Hagen Quartett (2003), Melos Quartett (1983), Quartetto Italiano (1972), Quatuor Mosaïques (2004)
Concert review, ★★★★★, Mizmorim Chamber Music Festival / “Musica notturna”: Gringolts Quartet, Christophe Coin, Alice Burla @ Gare du Nord, Basel, 2022-01-22 — Boccherini: String Quintet in C major, op.30/6, G.324, “La musica notturna delle strade di Madrid”; Milhaud: 4 Visages for viola and piano, op.238; Ravel: String Quartet in F major, M.35
Blog post #595 — #rolfsmblog •
Concert review, Armida Quartet @ St.Peter, Zurich, 2018-07-08 — Bach: The Art of the Fugue, BWV 1080; Mozart: Adagio and Fugue in C minor, K.546; Beethoven: String Quartet in B♭ major, op.130 / Great Fugue in B♭ major, op.133
Concert review, Belcea Quartet @ Church St.Peter, Zurich, 2018-02-04 — Mozart: String Quartet in B♭ major, K.589, “Prussian”; Janáček: String Quartet No.1 in E minor, “Kreutzer Sonata”; Dvořák: String Quartet No.12 in F major, op.96, “American”
Beethoven: String Quartet op.131 — comparing recordings with the following ensembles: Alban Berg Quartett (1984), Amadeus Quartet (1963), Artemis Quartet (2002), Brooklyn Rider (2011), Busch Quartet (1936), Emerson String Quartet (1997), Endellion String Quartet (2005), Guarneri String Quartet (1969), Hagen Quartett (1999), LaSalle Quartet (1977), Leipziger Streichquartett (1994), Melos Quartett (1985), Quartetto Italiano (1969), Takács Quartet (2004)