Congratulations on your new Yorkie. He will be here before you know it. I have a little boy (well, he's 5 now!) and I love so much! I always thought I wanted a little girl, but now I wouldn't have it any other way. I would pick the one in the middle, he seems a little bigger. I am just more comfortable with a bigger, smaller dog... if that makes sense at all. I'm sure they will change a lot in the next couple of months... hopefully your decision will be easy by then.