I wear these as my "nice" jeans.  I am 5'10" 165 lb the 32"x32" fits me well, and have always had pretty big legs since I run and lift, I have a problem finding jeans that fit well.  The regular fit is usually too tight, the loose fits are usually too sloppy, this is just right.  I am a 31" inseam so I bought the 32" and roll the bottom up 1".  I will stick with the 550 now that I know they fit so much better than all the others.  The wash goes well with a collar shirt for a dressy-casual look.