My vote would be for Bulgaria. I have a Bulgarian buddy who says that there are plenty of AMPle-breasted women available to those who are willing to go out and find them...
I went to Plovdiv last year in Bulgaria. I am still haunted by the how ridiculously beautiful the women were. RIDICULOUS. Most of them had asses and titties to boot. Didn't see one fat girl. If I did she had to be a foreigner.