Define "Best Looking". Tall, short? Large rack, small? Natural, enhanced? 20's, 30's, 40's? VC, NVA, ARVN? For what? Perhaps if you'd written an AR on Mina, or on some of your other scores over the past couple of months, members would have some idea.
I'd venture Vietnam if only for the larger population, playing the odds. Or you might RTFF, UTFSE. Just sayin...