I guess it is a matter of opinion I bought mine based on her mostly-full back stripe, and the fact that she does have spots in her patterning. Why? I think that the spots (actually more like enlongated lines) enhance the pinstripe effect. While I am a fan of reduced patterning in Spiders (preferring ones with no spots) I like Pins to have some spots in between the lines. Otherwise to me, they look more Spidery. It is tough to say, and there will be a million opinions on any morph. So I would go with what makes YOU go, wow!
I also like mostly-unbroken lines and what I call the "citrus fruit" look. Like the inside of an orange, sectioned off similarly And a cool head pattern.