I have to disagree with you, color is an adequate answer because you get to pick and choose. Even if I go to a shelter I'm choosing a color over another color. Of course how the dog acts goes with that. But I will wait on a specific color that I want as I get to choose that as the buyer.Do either of them have pedigrees available to you? Health test their dogs? Work them? Show them? Prove them in any way?
Why are you interested in these dogs? Colour is not an adequate answer.
If you just want a cute puppy and don't care about any of the above, please go adopt one from a shelter. There are plenty of great pet mutts available.