Arcteryx if you're into lightweight technical shells, no question. I had a 3-ply Arcteryx jacket that I wore for almost 15 years before I ruined it when I took a spill in the trees. The only thing about them is I wouldn't buy anything that's new in their lineup because the new stuff is experimental (like questions on a standardized test that don't actually count towards your score), and if it doesn't stick around it's probably because they felt there was a problem with it or it ultimately didn't fill in a gap in the line that they thought they had (a recent example would be the Sphene line). Stick to Alpha/Beta/Sidewinder.
If you're into really burly, reinforced outerwear, FlyLow is making some really bombproof stuff these days but it ain't cheap (I checked out a $400 bib the other day). Black Crows' new outerwear line seems promising-- some people have said the material is *too burly*-- but they're iterating through the designs really quickly. On one hand that means you can find discontinued stuff in their lineup for cheap (https://www.evo.com/outlet/shell-jackets/black-crows-corpus-gore-tex-jacket
), but the reason it's cheap is that they thought the design wasn't good enough.