SBP is entirely about physical strength and resistance. The rest generally use other methods for high end destruction. SBP breaks abstract concepts with raw strength and speed. Only challenge here in a straight fist fight is Classic juggernaut pure invulnerability. Worldbreaker is not shifting stars as sad as I am to say that while SBP could and would. Black hole containment via raw strength is not beyond him. Reality busting punches don't really occur in marvel where the basis behind the rip in time and space comes from raw physical energy.
SBP wins in a raw fist fight especially w/ no mjolnir.
Since this is a closed arena, I don't think BFR applies. Warriors Madness Thor, WB Hulk, Juggernaut, and Sasquatch are all pretty strong so I don't think this is a curbstomp, especially since the arena is so small and I think that works in the team's favor.
Also, if I recall correctly, Thor and Hercules combined to punch close a dimensional rift.
I'm not claiming one on one SBP doesn't massacre any of these people. I'm only pointing out this team has more power in it than people are giving them credit for. Also, Thor isn't technically a brick without his hammer as he still controls lightning (and weather) without it, and can still amp it quite a bit. He can also fly without it as well.
You do realize that just because magic doesn't work on him means jack shit to juggernaut right? His strength isn't magic based and his force field and durability would still work. The magic thing only matters if he is trying some magic offensive attack against him.
__________________ Some men, just want to watch the world burn.
I'm unsure how the team could prevent SBP breaking them up via numerous speedblitzes. Basically he could make it a series of 1-v-1 fights, and recharge between them.
Also point to the OP on Namor. Heatvision from prime for the lulz =namor on the ground flopping like a fish considering Prime can burn holes in Superman from Earth-1 with heat vision