All just my personal opinion
Concert review, Chiaroscuro Quartet @ Church St.Peter, Zurich, 2018-05-27 — Bach: The Art of Fugue, BWV 1080; Beethoven: String Quartet No.2 in G major, op.18/2; Mendelssohn: String Quartet No.1 in E♭ major, op.12
Neue Konzertreihe Zürich — Streichquartette in der Kirche St.Peter Johann Sebastian Bach (1685 – 1750): Die Kunst der Fuge (The …
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
Mozart: String Quartet K.428 — comparing recordings with the following artists: Alban Berg Quartett (1990), Chiaroscuro Quartet (2012), Hagen Quartett (2001), Hagen Quartett (2010), Quartetto Italiano (1966)
Beethoven: String Quartets — summary for comparisons of recordings, involving the following ensembles: Alban Berg Quartet, Amadeus Quartet, Artemis Quartet, Brooklyn Rider, Busch Quartett, Chiaroscuso Quartet, Emerson String Quartet, Endellion String Quartet, Guarneri String Quartet, Hagen Quartett, Kuijken Quartet, LaSalle Quartet, Leipziger Streichquartett, Melos Quartett Stuttgart, Quartetto Italiano, Quatuor Mosaïques, Takács Quartet
Beethoven: String Quartet op.95 — comparing recordings with the following ensembles: Amadeus Quartet (1960), Artemis Quartet (2005), Busch Quartet (1932), Chiaroscuro Quartet (2012), Emerson String Quartet (1997), Endellion String Quartet (2008), Guarneri String Quartet (1968), Melos Quartett (1984), Quartetto Italiano (1971), Takács Quartet (2004)