The only version of Op. 106 I had was the Lindsays, which I don't like much - it's quite exciting, but, for me, lacking in beauty.
BBC Radio 3 'building a library' recently pickled out the Pavel Haas as the best version of Op. 106. They have the excitement and drive of the Lindsay's, but also sound very beautiful in the slow passages. The Pavel Haas version of the 'American' is also worth the purchase, but not as convincing as Op.106. For me, the Lindsays are slightly better in the 'American'.
In seeking out the Pavel Haas on Amazon I spotted the Stamitz set for a ridiculously low price and bought that instead! But I found their versions of Op. 106 and Op.96 lacking the excitement and intensity of the Pavel Haas, while the Pavel Haas match them in beauty.
So, in the end , I had to get the Pavel Haas CD. Their mix of dynamism and beauty is not to be missed in Op. 106. If you are tempted to seek out more Dvorak string quartets, try the Stamitz if you value languid beauty above rip-roaring excitement.