Ahh, they are both beautiful pups. Are you going to meet both of them to see how they are so you can decide which would be a better fit for your household?
That would be a tough decision for me based on the photos. I would probably lean more toward Millie though, just based on looks of course. (I like her spots)
Or are you considering taking them both? (just kidding....kinda)
I know you will make the right decision with Nikki in mind.
Good luck to you in whatever you decide.....and I can't wait to see pics of the newbie.