In the comics, Hercules doesn't kill Thor. Their encounters are often part of complex storylines with various twists and turns, but not resulting in such a fatal outcome.
Sure. Thor and Hercules have clashed multiple times in different comic series. Their fights often stem from differences in power, ideology, or the circumstances of the story.
Definitely. Hercules is present in Marvel Comics. His adventures and powers have been showcased in multiple comic issues and story arcs, adding to the rich tapestry of the Marvel universe.