If you think spiders can't have alien heads, check out this thread. You may still not know the answer (until that snake is bred and proven), but it is an interesting read:
http://ball-pythons.net/forums/showt...050-odd-spider

As far as which one to hold back, I think I'd choose the upper right. It looks to me like the white comes higher up its sides and the color is a little more golden. Also, my personal preference in spiders is for them to be reduced in the sense of not having any alien eye type spots, but I like the spider pattern itself to be busy, and I think that one has the better pattern when judged by that standard.