Do you aspire to climb Ben Nevis in winter? Or, God forbid, Mount Washington?
Autumn is the time for serious hiking in whatever the weather serves up. Adventure.
We feel the best stuff is made by Montane. It's a Euroland company so it has an Alpine feel.
LL Bean is fine, but not for winter climbing. Patagonia has the brand, but check out Montane. Bear in mind that they use Euroland sizing, which is different.