if i had to choose one of those 3 i would go with number 1.
this is why. none have head pearls. #3 has small weak tail. from the looks of it the first fish "appears" to have sunken eyes sorta. strong flowerline on first fish, but strong doubles on other 2 fish. i really like the big extra spot on the 3rd fish. fishes 1 and 2 seem to have shorter faces based on what i see in the photos.
i would cross out the 3rd fish, honestly. both the others look better to me. so totally up to you i'm just tossing some stuff out there to look for. i however would still go for the first fish if i had to pick between those 3. ask for a better shot of the first fishes finages.
how much do the sellers asking for those? if you don't mind me asking.
are you looking to breed it with the fish in your avatar?