As the title says, which would you rather have? A colorful, but pretty boring fish (Tetras, guppies, platies, etc.) or a fish that may grow HUGE but acts like a puppy? (Goldfish, koi, Jack Dempsey, Oscar, etc.) I personally like the puppy like fish as they give me something else to do other than feedings, cleanings and water changes. I can interact with the fish, and he can respond. For me it's biased though, I have an Oscar, a severum, and I'm planning on getting and EBJD or arowana. Probably the former