Because a good villain is usually much more interesting than a good protagonist...
I'll start with...
Darth Vader.
Easily the best villain ever for me. He was such a mysterious character in the original trilogy with relatively little screen time in the first movie, but his powerful presence was felt throughout it all and it was terrifying. His imposing figure, all-black costume and cape, expressionless yet intimidating voice, loud mechanical breathing, his ruthlessness, crue