AE and lucky jeans tend to work out fine if you get them relaxed or loose in your size..they stretch a little.
if you want like wranglers or something.. I'd get them a size larger than what your waist asks for in a relaxed or loose fit and they'll work fine. I do'nt have hoss ass legss like you but my jeans look painted on when i get the size i'm told to get at the store. I've got a 36" waist and 30" legs and a huge ass.. so i've got to go up to the 38 loose to look like anything but spandex