i agree with MM being able to do it. if he's NOT stronger, he's just as strong. plus all his other abilities - mm's too much for almost anyone.
phoenix shouldn't count if you're not looking at cosmics. i like strange's chances in a battle with juggs. tough for anyone without mind powers. i saw someone said gladiator - not a chance in blue hell glads could do it. if thor and hulk couldn't put juggs down with purely physical means, glads has no chance - though i think if they battled long enough hulk COULD beat him. if someone like psylocke could somehow get his helmet off that would be interesting. i also wonder how the vision might do. i don't know if juggs shield would prevent vision from phasing through him - one hand partially solidified in his brain would about end him. the magneto issue is interesting - not sure if juggs shield would prevent mags from messing with his armor. be a cool match up. if mage COULD control things through the shield, obviously he'd own juggs - otherwise mags couldn't really do much to actually beat him aside from throwing him off the planet or somesuch cheap win. what about cable or x-man?