i know unikron is from transformers witch isnt really anime, but unikron has to be my favorite animated villian. any
robot large enough to eat planets warrants fear.
also scourge, optimus primes evil twin, a true decepticon through and through
as far as anime goes.. hmmmmm
Bear Walken from Gungrave
evil steel angel kurumi.
yuuhi shimabara because deep down she is truely evil...
and Kirika Yuumura from noir. she kills and only feels bad about it because she has no remorse XD
^All awesome, and quasi evil, half the evil and none of the fat!