Who is the most feared hero in the Marvel Universe?

[JudicatorPrime]

We probably don't need to include the super hero community, because really these guys don't fear a whole lot. These guys jump into battle risking their lives against impossible odds as their day job. Whether it's Namor or Hulk or Thanos or Galactus, there's in there mixing it up whether they actually have a chance at winning or not.

You're right, I didn't meant to imply that heroes lacked courage, merely there's nothing about Namor that really scares the living hell out of anyone. We've seen guys like the Wrecker tussle constantly with Thor, even though they are grossly outclassed. If they'll fight Thor, Namor isn't going to make them shake in their boots. They'd take that action any day, all day.

[SpideyCeo]

Probably hulk and xmen.