I would have to pick Paratalapia pollen large spot. We had a large male great looking fish and stood his ground if he had to. Got a young pair now we are trying to spawn no luck yet.
Parachromis managuense for sure. Has the personality of my dads Oscar (wagging like a dog to be fed, always says hi) but with fun aggression and coloration. He loves to flare his gills and attack magnets/hoods (which is awesome to me)