I am not a big AA or BW fan, althought I love some of their work. I can relate to both styles and do not necessarily agree that appreciating BW's work over AA's is a sign of one's sensibilities having refined. Sometimes the famous BW deep blacks works so well (in particular, in some of his natural abstracts) as to leave one breathless and sometimes it is annoying. Likewise with AA: some photos are just too "touristic" and others, especially pre-1940 AA are just too beautiful for words (e.g. Frozen Lake and Cliffs, 1932).