We've been fans of KÜHL Clothing for years. (Transparently they sponsor us now) But before they ever knew we existed my wardrobe was already filled nearly exclusively with the brand. They look good, and more importantly are durable. I abuse the hell out of my clothes and I've never been able to make a pair of their clothing unusable. The only time I ever get another is when I gain or lose weight. Blame it on the pan in Mexico.
I've heard good things about some of the Prana and Patagonia lines but I've never used them so can't comment. I've also heard great things about Carhartt and 5.11 Tactical if price point is a significant consideration though I've always been of the mentality of "buy once cry once" when it comes to gear you'll be using daily. Again, I've never used those brands, but from what I've heard the Carhartt's are practically indestructible.
As far as KÜHL goes, I really like their Renegade Cargo Convertible Recco pants. They aren't cheap at $109 a pair, but they are really comfortable and can convert into shorts as well. We travel full-time so we literally live out of a duffel bag. We don't have a closet or anywhere to store multiple items of the same time of clothing. So for us, things like convertible pants that give us a pair of pants and shorts all in one are ideal for space saving.
Hopefully that at least gives you one more brand to consider.
~ Eric