On my DD's 13u team...there are two catchers.
Catcher A is more fundamentally sound. She actually calls the game, good athlete...not great, very few passed balls. But, not a lot of throw outs at 2nd. Can get it there, but it has a small arch.
Catcher B is more athletic, doesn't call the game as well as a A, allows some passed balls in crucial situations, but you're not stealing on this girl at all. She has a cannon! She'll gun you out at 2nd, 3rd, etc and she's tough to steal home on as well
So, who's the better catcher at 13u? (My DD is a pitcher...so, I don't have a dog in the fight)
As she gets older you will be the dog in the fight! A good catcher keeps batters from becoming runners. A poor catcher tries to make up for poor receiving by throwing out runners.