Vagrant Story is a masterpiece and easily one the best stories in the Square library. Yes its difficult but its worth it.

FM3 is a good game, especially if you like SRPGs and mecha. The customization is amazing as well as the skill system. The story is good though I get a little irked cause I never felt it focused on what was really important...

Emma: We have to stop that powerful non-nuclear bomb from falling into the wrong hands!
Kazuki: But what about the fact that we uncovered all these genetic experiments being done on children to make super soldiers?
Emma: (slaps Kazuki) Moron! We're talking about a powerful non-nuclear bomb that might be used on civilians!
Kazuki: Uh... right... Who cares about amoral scientific experiments that make living weapons...

Also a tip... if you play Emma's story, at all costs capture the Zeroes...