I wear a 12EEE in AE. I have feet that are wide at the ball, just on their own and due to "bunions" [though I don't actually have bunions, just the distended metatarsal that usually results in them.]. In any case, it means my feet are about EEE at the ball, and E behind the arch. I buy AE only because they fit me (and not that well I might add.). Their lasts tend to be very boxy: no "waist" in the shoes as far as I can tell. But given my very-limited options, I'm quite happy they sell the extended sizes. I know Alden also sells widths. But it's near impossible to try on the ones you want: no dealers have them. And I won't special-order something unless I *know* it's going to fit. One other nice thing about AE: you can customize your shoes by ordering them in any of their materials, and when you do you can choose to make other changes as well. For example, here are my AE Bradley's in Black Cordovan (a color they didn't use when I ordered them) with a double sole and reverse welt (they are usually singles without the reverse): split-toe thread on styleFORVM
But, in general it *sucks* having wide feet: almost no nice shoes out there at all. C&J have a few shoes in a G width, not their more fashionable "handgrade" line, though there is one nice chukka (the chepstow). If anyone has these please speak up. I add that on this forum the user "rider", who has a shop affiliation, can provide some *very* nice shoes in wider widths. He has said that the Borgioli shoes on his shop page (see the next link for the "Frano's web site" link in the first post) can be gotten extra-wide and is looking into the possibility of these Marteganis in widths: Martegani thread, ditto
One can always go bespoke, but at $2500 minimum, this seems like a ways off for me. So, in closing, if you have wide feet but beautiful shoes, for our sake please tell about them.