Alright now this is a good one. We have Current Thor teamed up with a blast from the past and IMO the best villian ever, Atalon from the old Malibu/Ultraverse comics taking on WWH/WB and Sentry.
Thor one shots Sentry, and then BFR'S Hulk, any hulk, doesn't matter all Hulks together, 1 by 1 BFR'd. They can't fly, so Hulk is about as useful as an arsehole on your elbow.
Whoever said Atalon would be removed quickly needs to study up. He has AT LEAST WWH level strength combined with the ability to control/manipulate gravity and durability to survive a nuke.
I think sometimes an @sshole in my elbow would be pretty utile to be honest
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Honestly, I have to say if they BFR WWHulk fast, Thor and Atalon take it.
If there's no BFR, first Sentry takes out Atalon with his speed and powerblasts, Thor brains Sentry with Mjolnir, and Thor and WWHulk keep fighting till the Earth pops. They take it to the moon and keep going until the moon pops. And they do that until they sort out their differences.