Which Brands is which??

During my days of shooting Iowa wrestling, it was always an interesting guessing game to figure out which Brands is which. I've posted a few of my photos throughout this season - mostly during the NCAA Championships.
Can you tell which Brands is which? I'll post an answer later this week but you should let me know what you think. After I've been given an array of answers, I'll explain to you how I learned the difference between the two.