LOTD was awesome, and I totally forgot about xenogears for the PS1
My brother and I still reminiscence about that game when we have a few beers in us...for those of who who haven't had the good fortune to play it. Do so! Go and find it, god knows I haven't been able to. At least not in all the usual spots lol, and not for a good price.
For the gameboy advance: goldensun
Xenogears is like goldensun in that you move around then go into turn based combat. But the story...so epic! The mech-like creations you used, so wicked.
* Daemon gazes fondly into the distance