oh come on, no way do I sound like that. I have heard Americans who sound British, but they werent New Yorkers ... Boston maybe. And Im sure I now have at least some Aus in my speech - my local UK accent was very like Aus in its flatness, but other UK people can still pick that Im English, even if they dont know what county Im from.
I got Southern. Which, doesn't surprise me. Even though I was born in NY, raised by a family who grew up in NY, I talk like a Southern gal. However, I still talk as fast as a NY, so it's weird. I have a mile-a-minute southern accent that no one can understand.