One of my all time favorite video game series is the Persona franchise. Persona 4 is one I logged many hours into, especially on the Vita with Golden. While I'll admit 5 is better, lately I've been remembering this title and felt like doing a countdown on it for fun. So, click "read more" and let the fun begin. Minor spoilers ahead.
Disclaimer: This is purely my opinion and I do not consider any party members to be bad just that some have better potential than others.
Rise and Yu are the best but you have to use them so they won't be mentioned.