There is one particular villain in Marvel Comics canon who is strong enough to take on both Thor and Hulk with ease, and the MCU totally wasted them.

When the Hulk's presence on Earth becomes too great a risk, the Illuminati trick him to board a shuttle destined for a planet where he will be able to live in peace, and launch it into space.

MCU aims to revive Thor and Hulk with director George Miller. Miller might helm World War Hulk and Thor 5, offering his range of genres and styles. Marvel should give Miller creative freedom to ...

but condensing the "Planet Hulk" arc to a glorified subplot was disappointing. So much of what made that story beloved was gone, including an ending which set the stage for World War Hulk.