The knowledge level of the coaching.
The cost of being a part of that club.
The quality of wrestlers that have come up thru the club.
The number of quality training partners for your kid in the club.
The reputation of the club, the coaches, and parents. There are some clubs out there that produce some excellent wrestlers. I just would never let someone put my kid thru what they put their kids thru for something that is supposed to be fun!
These are just a few!
JMO