I like track & field because I competed in it in high school and college. I also like the skeet tournaments because I used to shoot skeet competitively. Swimming is exciting to watch. I keep up with the boxing, but don't watch as much. Equestrian is kinda' cool when the jumps don't work out. That is the only event you may get to see a crash (I am into car racing so is similar) Hmmmmm most popular I think is the marathon ending. They are really, really going for it.