1. Hulk
No way out, and only one can win, Juggs eventually take it.
2. Gladiator
This Panty-Boy goes down.
3. Superman
Juggernaut kills him.
4. Thor
Now, I will give Juggs the pass on this, and say he wins. But, in the past, Thor has negated Juggs magic. He has isolated him in a magical vortex of his own. But, Thor doesn't always do the smart thing.
5. Silver Surfer
SS can draw from a power source equal to, or surpassing the energies of Cyttorak. I think SS could take him.
6. Hunter/Prey Doomsday (without plot device infinite lives)
Come on! That's just silly. Bye, DD.
7. Thanos
I think he can beat Thanos, or stalemate him in a flat out fight. Depending on how much power he, somehow gets from his Cyttorak source. If we are talking about peak potential, such as 8th day or Trion, he can beat Thanos. But, Thanos is... well, Thanos. And, he will probably find a way to negate or shield Juggs from his magic source. Then Thanos wins.
8. Galactus
Galactus wins. He is normally filled with the same amount as, or more potential energy than Cyttorak, himself is.
As far as the whole "psychic thing" goes, has anybody ever been able to psychically breach his helmet?