| > Who is the most sympathetic villain in Marvel? Who is the least sympathetic villain in Marvel?|
Least sympathetic: Red Skull. Who can sympathize with him? The story that humanized him the most had his daughter spitting on his corpse, burning it, and telling him no one would miss him. There is NOTHING redeemable about the Red Skull.
Most sympathetic: This one's actually harder. Magneto and Doom both have the same problem - their hubris makes them use villainous means to accomplish a goal based in altruism. Several of the low-level thug villains have sympathetic reasons for being villains, whether it's raising money for an elderly parent, like Sandman; or to cure a condition, like the Rhino classically. There are more sympathetic villains at Marvel than not, strangely.