I know this thread has gotten off-topic to the point of no return but I'll throw in my two cents.
For me as a fairly active backpacker who also does a lot of climbing I really appreciate the fit and design of Arcteryx clothing over all other makers. Small details, especially the hood on my Theta SV and Beta Fl, the cuffs on my Atom SV and LT, and the pockets on my Rampart pants make Arcteryx gear a joy to use. I also appreciate the burly, but fairly light fabrics that have proven durable time and time again.
I do think that their base layers like the Motus SS Crew are very comfortable and also extremely good at wicking, but they do not have Arcteryx's usual durability.
I recently got a ridiculous deal on an Arcteryx AC2 pack and after some brief uses around the crag for ice climbing I have to say I'm impressed with that as well.
It's not to say that Patagonia, OR, Marmot or even The North Face don't have great gear -- they do (and outside the scope of my comment), and I own plenty from each, but Arcteryx is definitely a top notch maker by any measure.