I think this Minotti's has the best selection. We've been trying to make some of our favorite cocktails at home and, it turns out, our favorite cocktails require kind of obscure ingredients. Asking for creme de violette or green chartreuse at other liquor stores just yielded "....." faces and no help what-so-ever. At Minotti's they've been able to point us to what we were looking for or offer to order it for us, which has been really nice.
This specific location, I think, is worlds above the location in Parma. The selection is bigger and the staff is nicer. If you're in the market for liquor (and let's be honest, who isn't!?) this is the place to go. Especially if what you are looking for is unusual or hard to find.