At 14u, play on the best team that you can actually play on. If you aren't playing on the field, you aren't getting any better. It's all about development right now. Getting bigger, stronger, faster and better.
In the Atlanta metro, there are several well know nationally ranked teams. Two or more are known for great training and development. Great teams, great coaches.
One team is a really big name that does no development. The A team only plays the best players. If the A team gets bounced from a tournament, all the A players go to the B team and play in the B team's tournament. Guest players whenever they show up. You will be able to brag about being on the team, odds are you won't play. Big internal conflicts on assigning fields for practice. Good luck getting any development.
You probably have some contacts through school, church, your parent's work that can get you some input on the reputation of travel teams in your area. Maybe talk to some local pitching or hitting instructors. They should know the teams in your area. High school coach should know where his best players play at.
Last resort, google the team. Believe only part of what you read. if one person is mad, ignore it. If twenty people are mad, there is probably a problem.
I would believe the reputation of the team more than the coach.