Our last cruise was when my son was 11. He also had the choice between the two clubs. Edge won hands down. Much more "mature" with all of the video games, board games, TV's and dance floor / music playing. He was a very shy kid and after the first day we never saw him..... unless it was closed!
Seriously, he would eat dinner and run to the club (great incentive to eat your veggies), and then I would be ready to drop by 10:30-11pm with our younger daughter and my husband would be waiting ourside the door of Edge for HOURS while he kept saying "one more hour...". When we finally left the ship he was high fiving other kids AND the adult counselors that had been in the room. It was his best cruise experience ever. Unfortunately his sister was only 9 and refused to go to the kids club for her age so she stayed by our side. This next crusie they are BOTH eligible for VIBE (ages 15 and 17... YEAH!).