Which scifi bad boy is the baddest in the galaxy?

Darth Vader (David Prowse), Star Wars

Roy Batty (Rutger Hauer), Blade Runner

Agent Smith (Hugo Weaving), The Matrix

Magneto (Ian McKellen), X-Men

The Terminator (Arnold Schwarzenegger), The Terminator

HAL 9000 (Douglas Rain), 2001: A Space Odyssey

Khan (Ricardo Montalban), Star Trek II: Wrath of Khan

Ash (Ian Holm), Alien