I had to vote for Mischa. She looks like a GSD/Aussie mix. And I'm rather smitten with both of those breeds.

But honestly, since adopting Taggart, I would want to meet the dog and see what they are like. I know you said all of them have good temperments. But I'd like to see their personality. I saw a dog at the shelter this weekend that had the same personality as Taggart. I loved him!! He plopped in my lap while I was sizing his harness and stuck his head through it making it difficult for me to adjust it.