Most of the branded cashmere sweaters I own are probably Pringle. The newest I bought last year, and the oldest I think my father bought before I was born. I also think very highly of Ballantyne and Loro Piana. I don't know who makes Knize's cashmere but it's superlative and surprisingly well-priced. Jil Sander also uses amazing cashmeres that seem to last forever, with spectacular cuts and corresponding designer premiums. The best non-Scottish or Italian cashmere I've seen is TSE's. I'd never heard of J & D McGeorge before, and don't know if they're still around, but a vintage sweater they made for Horrid's is what I'm wearing right now, and is likely to be a favorite of mine this winter. Sometimes good stores' house brands are great cashmere, too, but you have to judge piece by piece. I've been very happy with sweaters carrying Barney's, NM, Clan Douglas/Nordstrom, and Bergdorf labels. As far as house brands at outlets, NMLC gets some great stuff, and some meh stuff. Off5th's seems to be more consistently on the meh side. Of middle-rung cashmere, I'm totally unimpressed with J. Crew and Banana. Brooks has some that look and feel like they're from the same OEM as Banana, and some that are nicer. The cut is a bit stodgy, but I think quality-wise the Lands End cashmere is simply a notch above those mall brands. I'm not such a huge fan of Avon Celli. The one I bought just didn't hold up as well as something that expensive should. Also, new Burberry sweaters seem not very good, though I recently bought two Burberry[s'] vintage sweaters (one labeled as made by Ballantyne, one labeled as made by Pringle) that are the equal or superior of anything sold today. I have no experience with Smedley beyond their Sea Island cotton knitwear (which I like) or Cucinelli. And not cashmere, but for thin sweaters Zegna has (or had) a line of woven 15-micron wool sweaters that are wonderful. If I'm somewhere cold, I'll layer a 15milmil15 Zegna turtleneck under a collared sweater.