This pole needs tobe like the ones that have 4 or more options so we know who thinks what, American, British or other English speakers. I'm American and I voted yes.
To arnquist it's poll not pole - unless you are posting it from the north pole and over there polls are poles. Anyway, you are quite right about the options. Well, I am a Pole and British English is my second language.
I am an Ecuadorian and I am bilingual. American Englsh is my first/second language. Yes American English uses schwa more frequently than English English.
It depends a lot on the dialect, too. Working-class Liverpool is almost all schwa and glottal stops - hardly another vowel to be found. American English, in general, uses more different vowels that UK dialects.