Shadow Hearts Covenant:
Karin Koenig: 5.5/10 - I almost forgot to rank her because I started from 'Main Character=Yuri' and worked down the list from there. She's solid, and always around, so she's a bit above average.
Nicholai Conrad: DNR
Yuri Hyuga: 9.5 - It's Yuri, if Yuri1 is a 10, then Yuri2 is a 9.5.
Gepetto: 3.5/10 - Usable, but cast-worst. Good as a warm body early on.
Blanca: 4 - Good warm body, better than Gepetto.
Joachim Valentine: 7 - consistently useful, fairly unique niche in a game full of mages!
Lucia: 7 - Aromatherapy hype.
Anastasia Romanov: 5 - Snapshot + better mage than Blanca/Gepetto, but gotten much later so no warm body hype.
Kurando Inugami: 7 - Yuri-lite is pretty awesome, but I feel like he's just another mage in practice.
Chrono Cross Yellow Innates:
Poshul: 4 - Ugh. Warm body hype.
Mel: 2.5 - Having a second chance to steal is useful I suppose.
Norris: 5.5 - Joins early in Lynx's party, and has great stats throughout the game and good weapon access. Pretty much the best Yellow-innate in the game for me, and get Warm body hype... in Chrono Cross!
Funguy: 2.5 - Err... if you want to use it, you can.
Sneff: 1 - Pretty much my idea of gameworst character.
Zoah: 4.5 - Good stats, but hurt by Norris' existence. Dual Tech with Karsh is worth a half-point.
Viper: 4 - Very usable, good weapon, had a Dual tech IIRC? Hurt by Norris and Zoah's existence, though.
Leah: 3.5 - See above, not to mention being a late-joiner. Has a decent Dual tech, but it's with -Draggy-. Gamebest HP and Strength just doesn't save her in a game like CC.