Why does everyone like X4? It was way too easy - I liked X5 a lot more.
I like Tales of Eternia more than Tales of Destiny (also for the PS1 - the comboing was just done great, and some parts of the game are tough as hell, but fairly so. It was released as Tales of Destiny 2 for some stupid reason).
And good god, I hate Lunar 2: Eternal Blue for the some of the shittest grinding in an RPG & for the heartbreaking final boss.