This is a joke. An absolute joke. There is not one single category in which Xenosaga could legitimately compete with Xenogears. Not one. Eh, okay I'll admit that if there was one music would be the closest, but still think Xenogears has a clear and substantial lead. In the category of villains though, Xenogears just absolutely leaves it in the dust. You're gonna compare greats like Grahf, and even more than him Krelian, to that cackling piece of trash Albedo? I haven't picked up Xenosaga since the well over a decade ago when I stopped just short of the final area because I realized playing it wasn't worth it to me, and I still remember how absolutely repulsed I was by how troutty and one-dimensional a villain Albedo was, especially after how great the villains of Xenogears were.
Krelian would probably be on my top 10 list of all time villains. Albedo might be on my top 10 of all time worst characters, right along with Zack and Namingway!