Typically, the advice is to play on the best team where your son will get significant playing time and develop skills and experience. Without knowing what your son's goals and aspirations are as well as each of the summer teams in question, it is difficult to say which is best for everybody. Travel teams can vary quite a bit in their approach and schedules. Also, travel baseball is not inexpensive hit to the family budget so that may be an overriding factor vs driving time. In our family (3 boys) driving time was never a consideration. It was always about fit with the appropriate summer travel team.
Good luck!