Bristle tooth or kole tang?

[JumperAlex]

I'm not looking to get a new fish right away but I'm thinking my next addition will be either a kole tang or a bristle tooth tang and was looking for opinions and people's experience with them.

 

[TheTodd]

Koles are great in established tanks. I've seen a few really nice Tominis, which makes me want one of those once I get my tank going again.