I liked Tales of the Abyss and Tales of Symphonia, though I can't tell you much about what they were about... I just remember the floating boxes of talking heads... side events and such. Kinda like Chrono Cross but a little more annoying?
Never finished them, I don't think, but I feel like I should go back and do so. Definitely with Abyss since it just came out, but I doubt I'll get it for the 3DS.