User blog comment:B214/Best and Worst Final Antagonists in Fairy Tail/@comment-5268982-20130704160155

I think Ultear also needs some credit as a villain. For me, she's definitely the best, as she is the one who also made Jellal a villain. In addition, you could never tell who she was in fact in league with, was the strongest Mage of a Dark Guild, was manipulative, killed numerous people... she was just perfect as a villain *^* and also the longest-running villain of FT (not counting Zeref)

And what about Minerva? Everybody wanted her dead from day 1. She tortured, hurt, beat to death, all in order for her to win in some contest. She was sadistic, bitchy, manipulative, clever, and had everything a good villain needs (/._.)/ WOOT for Minerva

So, all in all, those 2 + Hades are, in my humble opinion, the best FT villains :P