As his vast power set implies, the Sentry probably has this one. He’s fought the Hulk to a standstill in the “World War Hulk” storyline — a feat that proves he should be able to throw hands with just about any comic book heavy-hitter out there. Even if you assume that Invincible’s Viltrumite physique gives him the edge in pure punching power, the character still has no real counter for the Sentry’s various matter and energy manipulation abilities … unless you count Mark’s physical durability, which, as the show has proven, is hardly limitless.
Should the pair fight each other, there would also be the risk of the Sentry losing control and the Void taking over. This would create a whole new set of problems for Invincible since the dark entity is just as strong and invulnerable as the Sentry but uses its powers in a different way and with greater control. In fact, the Void would probably need to use only one power in its considerable arsenal to break Invincible both physically and mentally. The infini-tendrils are sharp coils of darkness that impale their targets and hit them with a series of traumatizing visions. With all the pent-up anguish Mark is already carrying, this might very well be enough to cost him the fight … even without the fact that the infini-tendrils are strong enough to break the Hulk’s bones.
There’s no denying that Invincible is one powerful character. However, unless he’s able to borrow a very big antimatter cannon in a hurry, he has a long way to go before he can even dream of matching the Sentry.
