While looking for an example of the Cajun Bayou accent, I came upon the following pages examples of English accents. It’s a lot of fun. Most of the examples seem to me to have been chosen to be as intelligible as possibly, though I would prefer to hear the accents at their strongest and least intelligible. The Indian accent, for example, is especially weak.
(I must admit the Ode To Haggis is strong enough for my taste.)
I’d love to start a resource to collect examples of the accents found in all the world’s languages. Any one else interested?