Strangely, I find my pair of 634S 21oz to be by far the most confortable I ever owned. I'm 1 month in, but right off the bat they were more comfortable than any of raw 15oz pair of jeans I ever owned. Yes, they are thick, but incredibly soft and comfy, at least in my opinion.
I needed to size up 1 (35 but im usually like a 34), but with the correct inseam length, I don't even feel that those are "straight leg". Incredible feeling and fit.