I can think of a ton of places in the U.S. they could do. New England, Baltimore/D.C., Philadelphia (possibly as part of the Baltimore/D.C. region), Florida (particularly Miami), Chicago, New Orleans, Texas, California (split up into at least 2 or 3 regions), and Seattle seem like good places.
I don't think many people would get the reference, especially considering that Murkrow and Honchkrow are crows, not ravens. Besides, poets aren't exactly that well known. Hell, even I tend to forget that Poe lived in Baltimore, and that's where I grew up.
Realistically, it'd probably be some combination of Virbank City, BW1 Driftveil City, and maybe a bit of Canalave City. We're a port city first and foremost.
But we're getting off topic.
On that note, what kinds of areas in France would you like to see represented? Besides what's already been shown, I wouldn't mind seeing a beach area based on Normandy and a snowy area based on the Alps.