I really do not understand why people worry about fish being a bad ass. Are you having fish just for fighting purpose. Or do you want to enjoy and watch them grow.
Don't worry-I want a fish so I can enjoy having an interesting pet, and watching it develop and grow. I guess what I meant to say in that context is that they have a more "badass" appearance. I guess it might be cool to watch it fight another fish, but pitting it against another fish is wrong in my opinion. But there is something I find interesting about a fish with a nasty attitude.