In some comic arcs, the Skrull can be seen as bad due to their actions and motives. However, there are also instances where they have more complex and nuanced roles.
Definitely not. Rhodey's character in the comics was never depicted as a Skrull. His role and development were consistent without this element of transformation.
Well, Naruto's unique ninja skills like shadow clones and rasengan would be quite a shock in the Marvel Universe. He could probably team up with Spider - Man. Naruto's agility and combat skills combined with Spider - Man's web - slinging and spider - sense would make them a formidable duo against villains.