Tales of the Abyss is my favorite JRPG of all time. I'd say go with it.
I remember playing it back on the PS2... Man. I sunk over 300 hours into that game easily. Not as many as Symphonia, but hey, my PS2 broke while I was going through a 3rd playthrough. =/
Rhythm Game fanatic. DJMax, Taiko no Tatsujin, DDR, Rockband, Guitar Hero, Rhythm Heaven, Beatmania, and Pop n' Music. Amazing.