I've been a long-time Patagonia fan for two reasons: the have great quality/design and they have an amazing "ironclad guarantee". I've often returned things that weren't up-to-snuff and they have never given me a hassle – ever. That said, I don't find their quality to be as good as it used to be. I have base layers [made in the USA] from the 1990s that are still going strong, but current generation base layers seem to last a couple of seasons max. I've recently started to favour Arc'teryx over Patagonia as I find their quality flawless and designs are definitely more refined, but their prices are insane so it needs to be found on sale.
At the end of the day, if you want quality, you have to pay for it. The one thing that bugs me about all these premium brands is that they've moved the majority of their production overseas yet their prices have remained the same. In some cases, their quality has diminished.
In terms of outdoor apparel, it's hard to beat Arc'teryx or Patagonia.
Many of these companies are now more about fashion than passion, but the true "dirtbags" that are pushing new climbing routes or exploring the world on a bike – ostensibly, the very people who this kind of clothing is designed for – aren't usually the ones who can afford $700 for a new Gore-Tex Arc'teryx shell. It's the business man snowploughing down Whistler who wants to look trendy – he's the one that can afford it. The truly passionate are not often the ones that can afford this gear, hence why these companies need to hit other markets to maintain momentum. In Vancouver, Arc'teryx has 3-4 big sales/year where they drop their prices on overstock etc. you can often wait 3-5 hrs just to get in … that's how you know their product is overpriced.