I've been buying nothing but Levi's 501 for years.  Generally, I love the cut and fit.  My only issue is that when you buy 2 of the exact same pair/type, there are differences in cloth and sizing.  That was true with these, and has been true with past purchases as well.  I'm not sure why they have issues with consistency.  Between the two, one pair is about 1/2 a size larger than the other and the cloth is a heavier/stiffer weight.  It's crazy.