Emil Blonsky/Abomination – The Incredible Hulk
Having control over a super suit is one thing, but being able to transform into something which can rival The Hulk is extraordinarily impressive.
Emil Blonsky has the combined abilities of two Avengers: he has both Captain America’s ability combined with The Hulk’s transformation. This makes him not only incredibly dangerous, but unstable. Blonsky is obsessed with being the most powerful person, which is why he subjects himself to outrageous experiments. Upon seeing The Hulk’s power, he becomes hell-bent on defeating him.
His motivations may not be strong as some of the other villains, but there is no denying how dangerous Blonsky is. He may not have defeated The Hulk, but is there still a possibility of a return for The Abomination? Perhaps The Hulk needs another formidable opponent?
Helmut Zemo – Captain America: Civil War
Strength does not always mean physical strength, which is evidenced by Helmut Zemo. Despite only being human, he gains rank as one of The Avenger’s most formidable opponents. He does not require the magic or strength of others on this list, as he was able to cause enough damage using only his intellect.
Fully knowing his physical limitations prevented him from attacking The Avengers, he chose to attack them strategically. Zemo instigates a “civil war” between Tony Stark and Steve Rogers surrounding the passing of Tony’s parents. Through his strategy, Zemo successfully drives a wedge into the group.
When looking at all the villains, Zemo is one of the few who succeeded in his plan, making him very dangerous.
3. Hela (Thor: Ragnarok)
The long-lost sister of Thor has some serious family issues. She’s absolutely ruthless, crushes Mjolnir (and therefore Thor’s spirits for a bit), and has an admittedly very cool wolf pet. Cate Blanchett knocks it out of the park with her portrayal. Hela is horrible and evil and also kind of badass, which shoots her up these rankings.
2. Loki (Thor/The Avengers)
Ah, the anti-hero. Loki is a pretty terrible dude most of the time, but he has his moments of actually doing the right thing. He’s petty, jealous, and the most untrustworthy person in the MCU. In Thor, he tries to kill his brother several times. In The Avengers, there’s the whole opening a portal in the sky to let the Chitauri in to kill a bunch of people and destroy half of New York thing. Oh, and don’t forget about when he faked his death, pretended to be Odin, and was content to hang out on Sakkar with the Grandmaster without helping Thor escape the gladiator-esque games.
1. Thanos (Avengers: Infinity War/Endgame)
We get glimpses of Thanos’s lilac tinge in a handful of the MCU movies, but he’s clearly the pièce de résistance of the culmination of Phase Three with Infinity War and Endgame. Josh Brolin plays the genocidal maniac perfectly, even leaving some viewers after Infinity War saying, “you know, Thanos might have a point about how we’re destroying the planet.” He’s willing to kill billions of people on countless planets to get a little peace and quiet, and is the reason we lose a lot of characters we really care about.
Thanos gets the benefit of a multi-movie arc to explain the full extent of his cruelty, ambition, and willingness to do anything (including kill his own daughter) to achieve his goals.