FWIW, I recently had the chance to compare/contrast the Flint and Tinder 10 year hoodie to American Giant's "Greatest Hoodie". IMO, both similar quality, the material on the F/T is a little softer, but the big thing for me was that the AG was tailored a bit better. Not slim fit, but that thing in hoodies where you immediately look 7 months pregnant when you zip it up wasn't there. The AG non-hood jacket from the same material is a great sweater.

While I'm overall not crazy about Jachs quality, they are running a deep sale on hoodies/pullovers right now, and while not BIFL, they're worth the money when they're on sale. I have two colors of https://www.jachsny.com/collections/mens-pullovers/products/j20c-343-pf7 and wear them all the time in winter. Very warm, very comfortable. Only thing to watch out for with Jachs is that a) some things are dry clean only that you wouldn't expect to be, so check the item details, and b) they sometimes advertise things as, for example, merino wool that are 5% merino wool. Just bugs me.

I'm really impressed w/ any Faherty stuff I've bought (2 hoodies and a great heavy sweater), and am considering https://fahertybrand.com/products/donegal-ombre-crew-navy-storm-ombre?variant=40318372053061. I'm kind of sweatered out right now, though.