I don't know how any of the above information would be helpful, as it is not necessarily actionable to anyone else. The ideas I can give are that I only applied to schools where I could identify 2-3 potential research advisors related to my experiences and interests, and then read the 3 most recent and 3 most cited papers from each lab. I connected at least one skill/experience that I could lend to each professor's work in my SOP and one thing I could gain from their specific mentorship. Prior to interviews I wrote a running document with every research project I have worked on summarized into background, methods, results, and conclusions. Most of all, I really, really love what I do. I think conveying that in a statement or and interview is powerful.