I know this is a little old, but I will also chime in. I couldn't agree more about All American Khakis and Berle. By way of background, as a fellow with an ample midsection, options are frustratingly limited if you want quality pleated khakis in larger sizes with a long rise. Brooks Bros. and Polo have options which will do in a pinch, but neither come close to AAK and Berle IMHO. And these observations will apply whether you need big and tall sizes, regular sizes, short rise, long rise, etc.
AAK - to answer Mike B's question, I've ordered their Cramerton twill, Sea Island poplin, and corduroy. All three have been excellent. The Cramerton is probably their heaviest weight cotton trouser (like Bill's of old, I suppose); it wears exceptionally well, and their relaxed fit is very generous. The poplin fabric, available in the standard colors as well as a couple of really cool colors like blue and nautical red, is very lightweight and perfect for spring, summer, and fall (around north Ga., anyway). Corduroys were also excellent. Same good construction on all of them. All made in the USA about two hours east of Atlanta.
But the real prize of AAK is its customer service when dealing with Walt, one of the owners. This company takes real pride in its work, and Walt is truly amazing to deal with. Since they don't stock my size, I've specially ordered their trousers many times with no issues. When they ran out of a couple of corduroy fabrics in which I was interested (which they used to make trousers for one of their corporate clients), I talked with Walt, ordered the fabric directly from the mill in England, had it shipped to AAK, and Walt & AAK made them up for me. They even made me a couple of pairs of briar pants for quail hunting, even though they haven't made those in years (they still had the pattern). The absolute best treat was actually touring their factory one afternoon, going through some of their old fabrics with Walt, and picking out some to be made up.
I really can't say enough good things about AAK. Great pants, great customer service, all for a fair price and made in the USA. Can't beat it.
Berle - Berle has also been excellent. Their long rise Self-Sizer Performance Khakis were my go-to khakis for several years. Great construction, great fabric, great customer service. Although I've purchased more from AAK than from Berle recently, Berle is right up there with AAK in terms of fabric and construction, and I am actually looking to buy a couple of pair from them soon.
Best of luck!
AF