ShadeStrider

So, Ranking the Persona 3 party members in terms of likability.

1. Shinjiro Aragaki

2. Aigis 

3. Akihiko Sanada

4. Junpei Iori

5. Ken Amada (I'm sorry, his placing here might be a bit controversial. But I don't hate him.)

6. Mitsuru Kirijo

7. Koromaru

8. Fuuka

9. Yukari Takeba (This is the only Character that I have a mixed opinion on.)