From the Finale of Planet Hulk: 'He calls himself Worldbreaker because he knows that one day, his rage will burn this planet clean. But today the planet burns him. Sears him to the very bone. But he will not let her go. Today the Worldbreaker unbreaks his world.'
Pretty much the entirety of Planet Hulk is one, huge CMoA for our lovable, huggable, angry green guy.
The greatest moment in World War Hulk comes early on with Hulk vs. Black Bolt.
Hulk: I didn't come here for a whisper, I want to hear you scream!
During his first fight with the Galaxy Master, a Cosmic Entity, Hulk defeats him by jumping inside the Galaxy Master and ripping his mechanical core to pieces.
The entire Greg Pak run might count as one.
In their first battle with the Hulk, the U-Foes end up suffering from Power Incontinence and seemingly die on their own without the Hulk needing to do anything. In their second appearance, they've gained full control of their powers and managed to defeat the Hulk. They then hijack the world's TV broadcasts, stringing the Hulk up as Bruce Banner and threatening to murder him on live television. The rest of the hero community is trying to track Banner down so they can help him out, but they're either unable to find him because Vector is blocking their efforts to find Banner (Iron Man, Doctor Strange, etc.) or unable to get there to help him (Alpha Flight, Daredevil, Spider-Man, etc.) Eventually, Banner's friends rescue him, and he's in an extremely bad mood from being publicly humiliated by the U-Foes. He then Hulks out and proceeds to destroy the U-Foes one after another, to the point of forcing himself through Vector's repulsion waves with pure brute strength to get to him. Keep in mind that this is the usually mild-mannered Banner who's mad enough to do this, the guy derided by the various Hulk personas as a pathetic weakling. See what happens when you try Bullying a Dragon, boys and girls?
Hulk in the Dark Dimension. He's destroying everything... and he's so happy.
The rapid-fire show of what the Green Scar did to relax after being freed of the Banner persona: swimming with whales, roasting a shark over a fire on a mountaintop, exploring a Mayan temple, rodeoing a triceratops, bathing in an active volcano, wrestling an octopus, and climbing a mountain in a thunderstorm. All while wearing trousers and boots that fit him.
It's somewhat diminished by the fact that he was playing the pawn to Banner, but Hulk managing to take on two of his biggest rivals- Wolverine and the Thing- at the same time and beat them soundly, to the point where they both agree to never speak of the encounter again, counts for something. Special mention goes for twisting Wolverine's arm and stabbing him through the skull with his own claws.
While we're at it, Banner's whole manipulation of the Hulk in order to get everything he needs to find a cure...that he has no intention of using on the Hulk himself.
When two of the dominant Hulks (Savage and Joe Fixit) threatened to tear apart his psyche, resulting with Banner transforming into a bizarre mish-mash of the three persona, inside his mindscape Bruce finally declares enough is enough and that he's had it with the both of them and punches out both Hulks simultaneously declaring "Banner is the strongest there is!". Outside, Banner reverts to normal. That "puny Banner" took control and dealt with the Hulks is astonishing.
The incident marked under Immunity Disability. During the Countdown storyline, Joe Fixit aka Grey Hulk has been poisoned, and is suffering from heart attacks. After collapsing from one, he goes to Reed Richards, where he collapses again. When he wakes up, he is told he is having multiple heart attacks, but they can't do further tests since even his gums are too hard for the needles to pierce. So what does Joe Fixit do? He asks for a test tube, holds it in front of him, and to the horror of those viewing, starts beating on himself till he bleeds out enough. Just awesome .
In fact the whole storyline is a CMOA for Joe.
During the Longshot Saves the Marvel Universe event, the cosmic entity In-Betweener, an equal of Galactus, is split into two , the Order and Chaos halves. The Order half takes over the globally Shield organization with his powers to advance his plans for the universe . Dr. Strange senses a massive power-concentration inside one helicarrier and believes it to the Chaos half that the Order half has imprisoned. He sends Longshot to release the Chaos half since himself going would risk getting controlled by the Order half while Longshot is protected by his probability powers. When Longshot reaches the helicarrier chamber where the power is being emitted, he does not find the Chaos half but the Jade Giant. Oh and the power Dr. Strange sensed. That was the Order half putting his entire power into restraining Hulk since he couldn't control him. Let me repeat that. Half of a cosmic entity, who at full power rivals Galactus, cannot control the hulk and it is taking all his power to restrain him. He is eventually forced to let Hulk go to get back enough power to continue his plans, and immediately after Hulk is free, he takes control of Ghost Rider, Scarlet Witch and Dr. Strange. Gives you a whole new perspective on how much the Hulk can ramp himself up when pushed
Doctor Octopus and Doctor Doom, two super geniuses who are also megalomaniacs with ego as big as the planet, admitting Banner is their superior in his field is awesome as well.
Doom's case is doubly awesome, since in the case of Octavius he was forced to admit it since he was unable to solve the problem he was facing at the time, while Doom said it while musing to himself. Doom admitting his inferiority to someone in something under no pressure is definitely an awesome moment for the person.
While the fight between Joe Fixit and Wolverine was more of a CMOA for Wolverine than Joe, the fight itself was something to behold