Thing is, Superman can T-vo, so it could mean an easy victory right there, Speedblitz/T-vo.
Its sucks but what can you do
If it where a battle with just Superman and Juggernaut No T-vo, Juggernauts gets clocked in the first millisecond of the fight, flys a few blocks away, brings up his shield, Superman charges Juggernauts, Slows down significantly because of Juggernauts Shields saps momentum from objects, Juggernaut gets ahold of supes, and its lights out superman.
Yes, maybe even Stronger, but at the same Time, Thor is no weaking, remember, he lifter the Midgard Serpent, which circled the earth twice I believe. Juggernaut Made it look like Thor was a child in his arms.
Now maybe Superman is Stronger then Thor, but not by much, Remember, Juggernaut is the Advatar of Strength, if he wants to do something, he is going to do it.
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No, Thor ain't no weakling. That's why I think he shouldn't have been owned like that by Juggernaut. And that's why I believe Superman should easily be able to knock Juggernaut around a bit. He's not going to beat him that way, but he should have the upperhand. Remember, Superman's strength limit is just as unknown as Juggernaut's.
Juggernaut cant be killed by physical means, supes punches do nothing, Juggs can just laugh it off, It'll take him a while to catch supes, but once he does, it's over!
superman turned the magheddon stuff, that was an awesome strength achievement, i think if juggernaught got a hold of superman, he'd just pount juggerz through all the building in sight, then through the earth, then out to space, across the universe until juggernaught is pointlessly floating in the vacuum of space. the end.
He couldent put him through any thing, Supes is dead as soon as he gets ahold of him, and the vaccum of space is nothing to Juggernaut, he has a magic sheild that protects him from that, he could beat Supes to death while floating in the vaccum of space, Juggs Wins, Game Over.
The shield doesn't mean any one or any thing in it stops moving. It's just added protection and if something were thrown at it (like, say, Thor's hammer), then it would slow the projectile's speed.