Especially in plain toes, like the Leeds, shell is great. The creases or rolls give the shoes their character.
Agree with your list, but will add that with a little maintenance, just brushing after each wear, shell will look fantastic. also, AE shells come with better J. Rendenbach soles, which will wear better than AE's standard soles.
Bucksfan, you might know this: is AE strictly having shell shoes MTO?