Those are all of mine JRPGs(I don't know if all of them can go to the JRPG category).I don't like all of them,I just post my list.
.Hack GU - Good game but on the second play it's kinda boring(or maybe only Vol. 1...couple of weeks I install of of the 3 volumes on my PS2HDD but I get bored of the first volume and I delete all of them but I'm thinking of installing Vol 2 and 3)
Ar Tonelico 1,2 - Played the first one(first time playing)using pcsx2...it was good game but after playing AT2,AT1 seems too boring(AT2 was really good game and I'm thinking of starting it again)
Atelier Iris 1,2,3 - The first one was the finniest(but hardest,the main character was almost useless in battle),the second one was the longest and good overall and the third one has the best battles and battles soundtrack of all 3 of them)
Dark Cloud 2 - Good game but I wasn't able to beat the boss in the extra dungeon.
Devil Summoner 2 - At the beginning it looks good but I got bored when the game started
(after the tutorial but I'll continue it some day)
Digital Devil Saga 1,2 - Played only the first one a little but I got bored
Disgaea 1,2 - Played a little from both of them but I still can't get use to the battles(like on FFT of PS1)
Dragon Quest 8 - Good game but the most annoying is that is really hard to level up and especially to gain money...that's the only thing I didn't like about this game(did you see Mr.Satan from DBZ there...that game reminds me a lot of DBZ)
Final Fanstasy 10,10-2,12 - 10 was good game but I don't like the level up system.10-2...now that game was REAL disappointment for me,that game was the one that I really wanted before having a PS2.The ATB system on FF7,8,9 was ok but here it's really annoying and after reaching the end of the game,the battle there were something that I just can't bare to play.And about FF12...for me this is the best PS2 FF game but it's little boring on some places.
Full Metal Alchemist 2 - Didn't liked that game,I was playing it as fast as I can to finish it.
Grandia 2,3,Xtreme - 2 was ok,Extreme became boring near the end of the game and I abandon it for now(someday I'll clear it but when that will be I don't know).And about 3...it's good game when you start it but latter the battles become real hard and annoying or easy to win but long...at the last boss I was mad to that game and after that boss kill be I just used cheats to finish the game
Kingdom Hearts 1,2,Chain of Memories - 1 and 2 are good games but Chain of Memories didn't stated yet.
Legaia 2 Duel Saga - I think this one of my fist games and for me it's really good genre(too bad there are only two games of this type)
Mana Khemia 1,2 - 1 was good game,I can't say anything bad about it but the second one has boring story but it has some good point in battles.
Odin Sphere - Played that game a little but I got bored.
Persona 3 FES,4 - FES...I don't know I played 3 and it was good game but I still didn't see anything new in FES.And about 4...it's good game but at the middle of the game(I think) I was able to create persona that makes me completely immune to everything except almighty.After that I played the game solo.
Phantasy Star Universe 2 - good game but bad ending
Phantom Brave - Still didn't played this game
Radiata Stories - It was good the first time(I take the unhuman part)but I can't get myself to start it again.
Rogue Galaxy - One of my favorites.
Romancing Saga - Still didn't played this game
Shadow Hearts 1,2,3 - 1...I'm in the sewer now
,2 for me this is the best of all,too bad it's not working on HDLoader.And 3...good but...
Shining Force Exa,NEO,Tears - EXA has terrible voice acting and after playing NEO,EXA is boring.NEO and then best of all 3 and Tears...got bored on the tutorial.
Soul Nomad & the World Eaters - Played that game a little but...
Star Ocean 3 - Good game but if you can do more than just to hits it will be perfect(I was looking to game similar to ToA battle system when I get this game)
Tales of Legendia - Really funny game and the battles weren't that bad considering the 2D battles
Tales of the Abyss - The is my real favorite of all RPG's that I have.
Valkyrie Profile 2 - Played like 10 hours but I just can't get use to the battle system but I want to play that game
Wild Arms Alter Code F - Played that game a little and I'll continue it someday
Wild Arms 4 - Good game
Wild Arms 5 - Another good game but one of the extra bosses(two bosses battle) was really annoying even if I have max attack/magic and a lot of defense. From time to time I go play again Ragu O Ragula(finish that game 2 times and I'm playing the third time)
Xenosaga 3 - Boring,nothing else to say.