One possibility could be that Ben Grimm, as The Thing, brings his unique strength and loyalty to the Avengers. His rocky exterior could be a great asset in battles, like providing cover for his teammates. He might also have some interesting interactions with the other Avengers, especially those with a sense of humor like Tony Stark. They could make some witty remarks about his appearance while also respecting his power.
He could be a great addition for his brute strength. Just imagine him in a battle against a powerful enemy like Thanos. He could hold his own and even distract Thanos long enough for the other Avengers to come up with a strategy.
Since I'm not familiar with a widely - known body of work specifically named 'the thing ben grimm ghost stories', it's hard to say they are popular. However, if it's related to the well - known character Ben Grimm from the Fantastic Four, and if it's a new take on his story with a ghostly twist, it could potentially gain popularity among fans of the character and horror - superhero crossovers.
Well, if 'the thing ben grimm' is related to the Fantastic Four's The Thing (Ben Grimm), ghost stories about him would be really interesting. Maybe it's about his encounters with supernatural elements in an alternate universe or some spooky events that happened during his adventures that are being retold in a ghost - story - like fashion.
It could be about Ben 10 characters joining forces with the Avengers to fight a common enemy. For example, they might team up against a powerful alien or a super - villain who has the ability to cause chaos on a global scale. Ben's alien forms could bring unique powers to the alliance, while the Avengers' skills and teamwork would also play a crucial role.
In this fanfic, perhaps the Avengers initially don't trust Ben because he's an unknown with such powerful and strange abilities. But then, when a common enemy attacks, like an alien race that wants to conquer Earth, Ben proves himself. He uses his different alien forms to complement the Avengers' skills. For example, using XLR8's speed to assist Quicksilver in a rescue mission. And throughout the story, they learn to work together and form a strong alliance.
Ben would probably be in awe of the Avengers at first. He might try to show off his alien forms to impress them. The Avengers, on the other hand, would be cautious. Tony Stark might want to study Ben's Omnitrix. Thor could be interested in the power of Ben's alien forms that are related to strength and lightning.
The characters would likely start off a bit cautious. Ben might be in awe of the Avengers' fame and power. The Avengers would be curious about Ben's alien - changing abilities. They'd probably exchange stories about their battles at first.
One interesting crossover could be Ben using his alien forms to help the Avengers in combat. For example, Four Arms could provide extra strength in a fight against a powerful enemy like Thanos. Another could be Heatblast teaming up with the Human Torch to create an even more intense heat-based attack.
I think Spider - Man from the Avengers and Four Arms from Ben 10 would make an interesting combination. They both have enhanced strength and agility. They could have some really cool fight scenes together, and also some humorous exchanges. Four Arms' brute strength combined with Spider - Man's acrobatics would be a sight to see.