I can say indubitably, that MCU Cull is the weakest "big guy" by far in the MCU.
The airplane connector resembles a shipping container weighs about 50-60,000 pounds. About 25-30 tons. Seems pretty impressive right? Wrong.Not once, but twice. Spiderman stopped his overhead slam in IW and pulled him to the ground in Endgame. If Cull were stronger than Spiderman, there is no possible way this could have happened. It's not possible to block a strike from a hammer if said person is stronger than you. It's also not possible for someone 9x your size ground you from behind with strings attached to your arm if he/she isn't stronger than you. Their small size would mean that they have to generate a lot more force than someone of your size to bring you down.
What is Spiderman's best strength feat you ask? Well, the best quantifiable one we have is the Civil war feat where he holds up the airplane connector.
This feat is a lot less impressive than you think.
Look at the left and right when Spidey catches the connector. Clearly, there are sparks on the left and a dust cloud on the right. This means that the connector comes in contact with two surfaces to support it around the same time Spidey also catches it. In other words, he didn't support the full weight of the connector. This means he held up exceedingly less force than 25-30 tons. For all we know, he may have only supported only a third of its weight.
Loki was overpowering Cap far better than Spidey was. I'm not talking about overall fighting performance, I'm talking about purely strength wise. We know that Endgame cap = A1 cap based on their encounter in endgame and therefore civil war cap shouldn't be different from A1 cap. Therefore based on this alone, Loki is stronger than Spiderman.
If Loki> Spiderman and Spiderman > Cull.
Simply because Loki got wrecked massively by the Hulk in A1.
Before you start saying "but muh abc logic". ABC logic is wrong only in fights when you remove different contexts of it. However, I'm not comparing fights, I'm comparing them purely on their level of strength. Aka, how well they can put up with another character's strength, physically.
Ant-man killed him by stepping on him. It didn't even appear to be a deliberate stomp, more like an accidental one. Before you say that One-shotting a Leviathan = being able to kill Hulk level characters with ease, you should know that stepping on something doesn't generate much force towards that thing. I can accidentally step on a person while doing little to no damage to that person, however, if I were to perform a left hook upon that person, they would receive substantially more damage than my accidental step, or even a stomp would. Therefore the two feats aren't comparable at all. The Leviathan is more durable because it got killed by a stronger attack (punch) than Cull, who got killed when Scott stepped on him, a much weaker attack.
He managed to beat a Hulkbuster with an inexperienced pilot, damaged from the outriders and was also jobbing. Look at the Hulkbuster strikes performed on the outriders vs ones performed on the Hulk. The ones on the Hulk were done with substantially more force.
Also, he never wrecked Iron man. He knocked Iron man down like 3 times total, but it was never shown that any of Tony's suits were damaged from the encounter. To say otherwise would be simply ridiculous. The Hulk gets thrown around by the Hulkbuster, but he doesn't receive much damage from it. Doesn't mean that the Hulk's life was threatened because he was thrown around, or the Hulk was bound to lose the fight.
What Cull has is weight. He is like 6x bigger than Iron man. That's why his strikes can send Iron man to the ground fairly easily, while Iron man's attacks don't seem to do much. Cull also blocked 90% of Tony's attacks with his weapons, which are fairly adaptive, in themselves. Whether he was beating Iron man is a totally different story. There is no evidence to suggest that he did, or would have done. Ironman received literally zero damage on his suit from their encounters.
Korg is literally featless and Drax is about 3x Captain Americas, but these two guys alone were destroying him. Korg has no strength feats aside from beating zombies that can be blown away by m-16's. nuff said lol.
With all this in mind, it is simply ridiculous to assume that Cull would be anywhere near other brutes like Hulk, Kurse, Hulkbuster, Fenris, etc just because he looks big and knocked Iron man around. Lol, he's not. Such a notion is completely laughable tbh.
Kurse would kill him in a few punches, Hulk would do the same, as with a competent Hulkbuster pilot. Fenris will eat him whole with extreme ease.
This guy is a mid-tier level villain. His gear allows him to be able to fight enemies above mid-tier for some time, but I don't see how he'd win any prolonged fights.
Stop putting him against enemies far above him lol.
The Black Order really are just 3 mid-tiers and 1 mid-tier that follow Thanos everywhere.