Kimi no Yuusya: Finished main story. First off, final party rants.
Tio - Since she was the first character I saw and had to "put" up with, to put bluntly, it seemed like I was going to hate her guts for most of the game, but the way the character development was going, I was really able to see her become a better person, especially with the things that happened before the final encounter and during the ending. Gameplay wise, she was an extremely powerful nuker, doing 2nd gamebest damage (gamebest damage is reserved for another guy) and having the resources to maintain that damage. Her only major weakness is craptastic durability that is only salvageable through twinking. Her unique skillset is also very much catered towards her nuke aspect, with Magic Missile being great ST damage and you can choose between Drive Flare or Magicuran for MT damage. Of course, there are also storeboughts and treasure chest finds, especially the Starbook Highgrade, which gives Blasts of all the elements (Heavy ST damage of a particular element, Freeze Blast inflicts SLP). I dunno, probably high middle. Or low heavy.
Wanda - For a majority of the game (he is the second one to join) it is thought that he is the hero, well, some spoilerish crap happens at the end and you find out otherwise. Anyway, he's the typical happy-go-lucky kid who's only really serious at certain times, he seems more of a dreamer bubbly type than anything else. During the ending, though... Anyway, for the early-half of the game when Wanda wasn't doing enough damage I assigned him as a healer for a bit, then when I started completing his skillset I changed his role drastically, he became a side-attacker to augment the party in terms of damage, as boss durability in this game is nothing short of completely ridiculous. I think he's 3rd gamebest damage or 4th.
Tango - Alchemist dude who I've really come to like. He seems kinda cold at first but actually, he just likes to be rational. I like that in people. Especially in his riddle quest. He outsmarts the old man by giving him a riddle he can't solve. "GIVE ME THE ANSWER! I MUST HAVE IT!" and such. In game, he was hardcore support, using his Alchemist Wall for 90% of the game to provide MT Def up, then I replaced that with Armor Aura and Mind Aura to provide both MT Def up and MT MDef up, and gave him healing/revive and some attack in case he's not doing anything. His damage is pretty meh but then again he is a supporter/offense, not of one extreme. His stats are /extremely/ balanced and since healing is so damn cheap in this game he can afford to attack pretty often. Overall very solid.
Dranko - A dwarf who is not really a dwarf. Dwarves in this game are really cute things that resemble teddy bears without fur. Or something. I don't know how to describe it. Anyway, he's a silent guy, and through the 20 episodes I've had him he only spoke ONCE, and that was during a quest. He is also the chief of the Dwarves. In-game, this guy is absolutely brutal. Gamebest damage, gamebest pdur, and such. His mdur is less desirable, but he has the HP to pull that up a little. Buffs up his attack, then goes crazy with his skills. He has Armor Break to lower enemy DEF and it also deals considerable damage, a little stronger than the typical physical, which, from Dranko, is pretty damn high (4000~). Very very good. I've used him 100%.
I really didn't use the others much because simply put, I was too attached to the final four to really want to use any of the others. Maybe in my post-game exploits I'll talk about those. But anyway, these four together were able to mow the floor down with the final boss, who is a 3-form formchain. Total HP is 430000 which is insane really.