Smetana Supraphon: I’m generally a fan, although there are a few quartets they do even better in their later Denon set (notably 127). Recommended.
Emerson: I am an Emerson partisan; most of what they have recorded is top flight. Their late quartets are very successful but you have to already like their approach, and some people don’t. Recommended, but sample first.
Tokyo RCA: don’t know it. In the middle quartets, have preferred their later cycle on Harmonia Mundi. But I’m not a huge Tokyo Quartet fan, so not the best person to ask. Sample first
Alban Berg live: don’t know it but have it, & have hoped to find the energy for attentive listening for some years
Guarneri RCA: don’t know it
Other recommendations: for the late quartets specifically, my most common standbys are the Brentano Quartet and the Leipzig Quartet, both only available as individual issues (Leipzig also in a box of all the quartets which is probably OOP). I also like the Yale Quartet & the Lydian Quartet, and have a lot of time for the Quatuor Mosaïques, which most people tend to dislike. But more often, specific recordings; for 127, Smetana and Hagen; for 132, Quatuor Terpsycordes, Pellegrini (very out of print, the only CD I’ve ever spent $50 on and it was worth it), Tetzlaff, Belcea & Concord; for 130 & 133, Brentano, Hagen, Busch, Auryn 1994; for 131, Végh, Brooklyn Rider & Juilliard 1960; for 135, Petersen, Zehetmair & Hagen
All off the top of my head. I would also recommend Joseph Kerman & William Kinderman’s books on the Beethoven string quartets, if you can find them