Since it seems we're sorta on the topic (even though I'm sure this has been asked before)
What was your main team in each Persona game you've played? This includes Persona 1, Persona 2: Eternal Punishment, Persona 3, P3: The Answer (with Metis and with Aigis being the MC, this changes a lot up), and P4.
In P3, I used Yukari/Akihiko/Mitsuru. Yukari was for healing and wind coverage while Akiiko debuffed enough that Mitsuru could hit really hard (this worked really well with Mind Charged Bufudyne on the final boss)
In P4, I used Yosuke/Yukiko/Kanji. Yosuke was a decent healer, and Masukukaja is really useful. His physical abilities are decent too, so he was helpful all around. Yukiko is obviously the main healer, and Kanji had massive damage with Power Charge and the hard-hitting physical attacks.
I haven't played P1/P2 :/
In P3, I used Yukari/Mitsuru/Koro. Yukari because she was my favorite character and also a healer. I also had Mitsuru because she's one of my fav characters and also another healer in my eyes. (But I also ended up liking Aki a lot...)And Koro because he is friggin' Koro and I obviously needed to use him, plus, he ended up being my most useful party member, heh.
In P3: The Answer, I used Metis/Ken/Koro. Metis because she was obviously going to be forced to the player with her Orgia mode, being a new character and having no weakness. (But she's still my most disliked character) Then I used Ken (also healer) and Koro, because both of them were Light and Darkness, and because of that enemies rarely had a Hama/Mudo skill so my party basically had no weakness at all!
In P4, I used Yosuke/Yukiko/Kanji (the same party as you!). Yosuke because he was my favorite character and also had a varied moveset (wind, physical, heal, buff, debuff). I used Yukiko because when I started playing the game I fell in love with her design, but over the course she became kinda boring and didn't really shine in comparasion to other characters. Still, she was pretty darn useful with her Agi and healing skills (if I knew Teddie was a healer I would have used him instead of her). Kanji because well he's KANJI!! He is my second favorite, he had to be in my party, and he fit nicely because I liked him better than the other physical party member and his skills were pretty good.
Now, for my PQ party, I'm planning to do the P3 side with my two favorite P3 and P4 party members, and then the P4 side with my next two favorite P3 and P4 party members. I don't care how unbalanced it is (besides, I can use Sub-Personas right?) but I can't really decide which characters to use in one and which ones in the other.
1rst party: P3MC, Yosuke, Yukari, Kanji, Aki/Mitsuru/Koro
2nd party: P4MC, Aki/Mitsuru/Koro, Teddie, Aki/Mitsuru/Koro, Naoto