Are you going to be a freshman next year? If your coaches don't have rules against it, and it wouldn't conflict I would try to do both! But I think it would be really difficult for you to do 2 all star teams. It would get pretty stressful at times. If you are going to be a freshman, you really need to make sure it won't take up all your time. Whenever I look at my GPA I hate myself for doing not as well as I could have freshman year. So now, I have to try EXTRA hard to do well to get it back up, and it's really difficult haha.
So make sure you take everything into consideration! Think about when you'll have school practices, games, competitions, then all star practices, competitions, etc. THEN you also have to factor in time to do homework and projects. Personally in your situation I'd focus on one (which would probs be allstars since you'll probably learn and progress more) most definitely if it's freshman year. However, if you are a sophomore/junior and you think you can handle both, it's worth a shot!
Sorry if that was really repetitive, I'm so tired haha