Add Mayweather or Pacquiao to your thread and you will get hundres of replies. That's how ESB works. But you can do both. Boxing will get you footwork co-ordination, hand and eye co-ordination, reflexes, reaction time, speed and strength. Kick boxing will help with flexibility. Try it and let us know how it goes.
Sure man, you can improve your coordination a lot with training and exercise, some are born with more coordination than others, but you can always improve.