It also depends how the aggression is expressed.
There can be species showing the same level of aggression with different outcome.
I had some bad experience with grammodes. They were my fault. The tank was to small and I misjudged their type of of aggression.
Some cichlids do a lot of chasing, fin nipping and lip locking. They just want their opponents to leave their territory. And then there are fish like grammodes who don't take any prisoners. They directly try to damage their opponents by ramming them in the side or even worse in the gills. Or they try to bite chunks out of them.
So an Amphilophus might even show a higher level of aggression compared to grammodes but the outcome might be less worse.