MED width. I think the Burfords are "F" (UK).
Either way, I had a hard time with the AEs. If I went one size up or wide, my feet would float inside. Size 9 fitted me fine but the toe area in medium width killed my right foot ..tried breaking the boots in for over a month...did the 'stretch' trick with my local cobbler ...no luck. Decided not to deal with the boot drama and flipped it on Ebay. Was actually surprised I sold it for almost what I paid (Nordstrom discounted price) ;-).
I've been wearing the Burford inside the house all evening (with socks) and it just feels right. Happy camper here.