I skimmed the thread and I didn't see anyone mentioning Arc'teryx pants. They are really awesome. When I switched from jeans I bought six pairs of the dead bird a little over six years ago in different models and colors, and I am still wearing them. No holes, so stains, no problems except one (a zipper finally busted). These are the only pants I own.
I wear them camping, working, hiking, heck, for everything I do. Extremely durable and comfortable. If you shop around they seem to average about $100.00 per pair. Though it sounds expensive you have to take wear into account. I figure that of the original six pair, five are left and have at least a couple of years left in them. The pair with the broken zipper are now for painting and hardcore mechanic work...meaning very dirty work. I always wash and dry them on the delicate cycle. They dry very quickly, resist almost every stain you could get in regular life, and the gusseted knees keep them comfortable when you are crawling around or stepping over things.
Some models are cut looser than others and they only go up to a 38 inch waste (which was what I needed when I bought them). The current models are mostly different from when I purchased, so I can't vouch for them directly (Starke, Cronin, Stowe, Russet, Creston, Sullivan, Atlin, etc.).
Highly recommended.