Enclave or Unity

[Gizmojunk]

Who do you think was the better villain faction and which represents fallout better as a whole?

They were the first, and they arose from the aftermath of the great war. They were B-movie monsters created by the mysterious atomic nuclear effects, and they wanted to transform humanity into ugly green monsters...—and then you find that they truly believed they were right; attempting to save humanity for its own good...and then genuine shock and remorse upon discovering that it was always a pipe-dream, and the sacrifices (both personal and ethical) were entirely for naught.

 

[5545Trey]

Father Elijah comes as a distant second.

He was an interesting enough character, but I'm not sure if he holds that rank.