I'm debating whether to buy Flat Head or Iron Heart jeans. The Iron Heart jeans I've seen have tended to be a thicker than Flat Head...and the they're both about the same price. Assuming both fit equally well, should I go with the thickest pair? Does thickness denote quality? I feel like thicker would last longer since they feel tougher...but I'm not sure that's the case. I don't really care about fading or anything like that, I care more about how long the jean will last. Every pair of jeans/pants/shorts I've ever own have gotten way to soft around the crotch...that's when they start tearing and looking sloppy.