Lenneth is the remake of the original; if you've played that, then you've had the experience. Such an odd atmosphere to the game. I love it.
As for Tactics Ogre, the old version has better face sprites (in my opinion), but a somewhat rougher translation (though it has its charms). The two remakes have good-but-not-as-charming face sprites, but a mostly better translation.
Grandia is very cheery, very 'high-adventure'. I have fond memories of it.