I think it's a good idea to rank what's most important to you, because you might not find someone who has every characteristic you are looking for. I went more with a gut feeling - we did have similar coloring, but that wasn't the most important thing to me. I liked what she wrote in her essay and I liked that we had similar interests. It was also important to me that I could talk to her before hand and that she was willing to be an open donor. At first, she wasn't going to be open, but after talking to her, she decided that she would be willing to meet the child (if he or she wants to) when we both thought it was appropriate. I also had an opportunity to talk to people who knew her in person. It was good to hear that they thought she was a kind person. Good luck to you!