It depends on how much importance you put on color. It also depends on how badly you want a puppy NOW and how much you'd be willing to wait for another litter. But I'd choose the best conformation, best temperament above all else. I wouldn't choose 2nd choice if there's a compromise in the really important stuff. And to me, color takes a back seat.
When I picked my first Poodle, I was really partial to silvers. But they weren't that easy to come by. I found a stellar breeder with a white and some blacks. There was one brown but he was spoken for. He lived very close which I preferred over someone in another state or further away. (that was another thing of importance to me personally) So, I went to see the pups and I loved the rambunctious white one. And wound up taking one of the blacks too. They all had good conformation and excellent temperaments. I thought white was pretty striking and liked it too. But it hadn't been my first choice. Now, I don't know what I was thinking because Matisse is gorgeous and color turned out to be not very important after all. And little black Maurice is adorable beyond words. He's just hard to photograph. lol. I was lucky to get to choose at all. Usually the breeder chooses for you. But in this case, he said they all are equally nice, any of them would work for me, and I was first in line after a friend of his.
So, decide what things are priority...getting puppy sooner, how important color is on a scale of 1-10, vicinity of breeder, make sure it's a fabulous breeder, best conformation, temperament, health of ancestors you can find and go for it.