Captain Adam aka Allen Adam aka Quantum Superman of Earth 4?
He didn't create the Thought Robot, he merely assisted the merger of Superman and Ultraman to reach it. The Thought Robot was created by Mandrakk I before he fell.
But yeah, tough call. Probably Protege I guess
__________________
"And then there was nothing. A once broken something now void.
And on the first day, Doom spoke... 'Be.'
And then there was life."
Never let anyone else define you. Don't be a jerk just to be a jerk, but if you are expressing your true inner feelings and beliefs, or at least trying to express that inner child, and everyone gets pissed off about it, never NEVER apologize for it. Let them think what they want, let them define you in their narrow little minds while they suppress every last piece of them just to keep a friend that never liked them for themselves in the first place.
How exactly is protege is going to beat someone who can link his mind with the overvoid ? And also isn't Monitor sphere the highest dimension in DC existing beyond the concept of story itself ?
And also Dax Novu according to Morrison words is a threat that could annihilate the entire DC fictional realm .