I love your regular priced white Gucci!! Yeah sorry to say but I think that one just really stands out! Great job in picking it! Shows you really liked it instead of succumbing to the temptations of a sale!
Out of the 4 sale bags, I like the black one as well, but I assume altho it's on sale, it's still a chunk of change... so I think I'd rather return all 4 of the sale bags and keep the white Gucci! or... use it to buy another bag that you really love!
(sorry if I'm being too honest for your taste here...)