I was lucky enough to have a roommate back in college who purchased RPGs far more aggressively than I did, allowing me to play quite the collection on the cheap, or at least watch.
Can (No qualms)
Arc the lad 4
Baldur's Gate series (Not overly familiar with high-level Jaheira, granted)
Breath of Fire
Breath of Fire 2
Chrono Trigger
Dragon Warrior IV
Dragon Quest VIII
Fire Emblem: The Blazing Sword
Fire Emblem: The Sacred Stones
Final Fantasy
Final Fantasy IV
Final Fantasy V
Final Fantasy VI
Final Fantasy VII
Final Fantasy VIII
Final Fantasy IX
Final Fantasy X
Final Fantasy Tactics
Grandia
Grandia 2
Grandia 3
Legend of Dragoon
Lufia 2
Lunar: SSSC
Lunar: EBC
Secret of Mana
Seiken Densetsu 3
Shadow Hearts
Shadow Hearts 2
Shadow Hearts 3 (Though didn't get all of Johnny, Mao, Natan, & Frank's later moves. Did get Ricardo, Shania, and Hilda's stuff though.)
Skies of Arcadia
Star Ocean 2 (Knowing C, R, Ashton, Leon, Dias, Opera, & Celine at high level reasonably well, and tinkered with the others a bit).
Star Ocean 3 (Final party of F, Nel, & Maria, with all the bonus dungeons. Know Cliff and Albel okay. Peppita & Roger can go die.)
Suikoden 3
Suikoden 5
Tales of the Abyss
Tales of Symphonia
Valkyrie Profile: Lenneth
Valkyrie Profile: Silmeria
Wild Arms
Wild Arms 2
Wild Arms 3
Wild Arms 4
Xenogears
Xenosaga
Xenosaga 2
Mostly can (nearly finished, watched large parts of, generally familiar with, etc.)
Breath of Fire 4
Chrono Cross (I did not replay the game nor tool around with the scrubs much. I seriously used... let's see... Kid, Karsh, Razzly, Norris, Fargo... and I guess Lynx, Harle, and Riddel are all forced at some point. That's about it?)
Golden Sun
Ogre Battle (Only played through once being shmucky and not getting the many obscure bonus characters)
Suikoden 1
Suikoden 2
Suikoden 4
Played some of, voting erratic. Likely lots of anti-votes (if I stopped playing this early, I probably didn't like the game).
Arc the lad
Arc the lad 2
Breath of Fire 3
Disgaea
Earthbound
Legend of Legaia 2
Lufia 1
Phantasy Star 1
Phantasy Star 2
Phantasy Star 4
Super Mario RPG
Tales of Phantasia
Wild Arms: Alter Code F
No.
Breath of Fire 5
Brigandine
Digital Devil Saga
Final Fantasy X-2
Legend of Legaia
Persona
Persona 2
Pokemon
Saga Frontier
Shining Force (But I grant myself voting privileges for Jogurt the mighty anyway.)
Shining Force 2
Tales of Destiny
Tales of Eternia
Vandal Hearts