Lucky brand jeans have been mentioned in other threads ... I've been losing some muscle lately, but they fit my thighs at their biggest and DON'T gap at the sacrum. Yay.
I've always heard good things about their jeans, too. One of these days I will try a pair, though the Levi's are such a good fit and easy to find and inexpensive, which has kept me from going out of my way to try Luckys.