What actually makes an Ideal Client... ideal?

I know that you are supposed to create an ideal client avatar. You're supposed to figure out their pain points, number of kids, spending habits, location, etc. I get that. The question I've never been able to find an answer to though is what actually made them ideal for you? Simply that they were the most profitable? They were most likely to refer you? They needed your unique service the most? They were the most enjoyable to work with? They had the most interesting projects to work on?These are all different clients for me in real life (admittedly, I'm fairly new and don't have a wide base yet)... I've looked at the clients I've had and boiled them down to these personalities: there's a pain in the butt who spends a lot. There's the super nice and easy client who doesn't spend much. There's the supportive brand cheerleader but who asks a million questions and is really time consuming. Then, there's one who really benefits from the type of service that I offer (and who has the most interesting projects to work on so I get the most job satisfaction out of them), but the owners just want a job done at a reasonable price and aren't brand evangelists or anything. So, which one is my ideal client? Or does it have to be someone who has ALL of those qualities rolled into one? Thanks in advance for your advice...**I am starting a brand photography, social media content creation (30 days of original IG posts, etc), copywriting, competitor analysis, basic web design service, etc for small and medium brick-and-mortar businesses wanting to differentiate themselves in my local area (sort of like a freelance mini-marketing service). see hubwealthy.com/wealthy