I'm gonna have to go with Sout Africa just because of their elusiveness, not to mention Heart Throb is to die for. I'd also have to say Argies because of their bright colors, and Italian Minty is probably one of my favorite variants of all time. And I love the Australian Birthflowers too. But South Africa totally gets it!
My favorites have always been Argentinas en Germans. Both countries use such good colorcombinations! The argies are so bright, the Germans have sweet, delicate colors. And i just like all German babies