User blog comment:UkantorEX/Main Antagonists/ Boss Characters- Your Favourite(s)?/@comment-5215338-20121012142238

Mephiles/Iblis/Solaris is my favorite, honestly. Mephiles was willing to use any means to achieve his evil goal, unlike other villains. He manipulated Silver and actually killed Sonic. Iblis was unstoppable in Silver's future. Together as Solaris, it took three super transformations at once to defeat them.

Black Doom is second, actually, especially in context. He was able to take advantage of Shadow's amnesia, mess with Shadow's emotions, and unsettle him. His only mistake was not trying to kill Shadow immediately.

As Baldy Nosehair's greatest idea ever, Metal Sonic is third. After Sonic Heroes, no one can deny how amazing and formidable he is. Whether he's on Eggman's side or dominating the world on his own, this rogue robot is definitely something...or someone...to look out for!