Both pools have some great fishing to offer but do have some differences. First one to come to mind is the catch and release of game fish on pool 2. Not the place to go if you are looking for a meal to take home. Pool 4 can get fairly crowded at times (weekends). Both pools hold big fish so it is a toss up. I seem to hit pool 2 a little more than 4 just because it is closer to home for me.