Interestingly, it seems like the variety I love leaps and bounds beyond the others--the Moro--was originally cultivated in the Sicilian state from which my mom's side of the family hails: Siracusa. It's much more intensely-flavored and colorful than the other varieties, and I just can't get enough of them.
I wonder, perhaps, if they're in my blood, so to speak (wink wink)? I think I'll have to track some down so I can do a little research.
(Or, if nothing else, I'll have to find more of the Teenage Mutant Ninja Turtle type pictured above. If I remember correctly, they taste like pizza...)