I don't believe there are such a thing as "good" characters and "bad" characters. If you're referring to the care levels, care isn't a major aspect on the Tamagotchi V4.5, as it's mainly based around family groups and skill points. However, on the V4.5 the family groups and skill points are a little more... unpredictable (i.e. if you have a Ura Young Mametchi and you increase Funny points, it's not 100% certain to get Ura Mametchi - it's more 33%). So really, it's personal preference as to if Horoyotchi is a "good" character or not.