Leaving the joke aside. The mountain gorilla is the only pet that has a decent size and which looks like a real-life animal. Whose sound is equal or very similar to that of the Atrox in Entropia Universe, or from a lion in real life. Then it is the most powerful animal sound of both worlds (virtual and real world).
But since everything is relative, some will like it and others will not. For example, the sound that I hate is that of leprechaum. I can hear him sing once, but I can't stand it for more than a while, because he neither is Placido Domingo nor the King of the Jungle .. hehehe
But away from likes and dislikes, it is the real cost benefit ratio that prevails when buying a pet.