Buttikoferi without a doubt. I've had butti's with so many different species of cichlids. They are always trying to become the dominant fish of the tank, or they persistently pick on the current dominant fish into submission. They have quite the advantage during a battle, my old butti would smash his opponent into ornaments, rocks, and the glass. Lucky for me, I didn't have sharp objects in the aquarium.
My butti dominated every single species of CA cichlid except a grammodes, until he outgrew him. The grammodes was smart, always kept distance from the butti. Only taking quick strikes, that was the butti's disadvantage.
I love when buttikoferi are the alpha in a tank, they never go out killing or hurting when they're up top. A slight chase here and there and that's it, unlike dovii's and red devils that are always looking for trouble.
! I'm not sure about 2 feet, but that's huge.
