The problem with Wizard is he is such a stock villain, he isn't menacing, creepy, noble, sympathetic or compelling. He is some jerk with a nonsense grudge against Reed Richards that has never developed into anything interesting. He would probably more interesting if he got over his grudge and focused on something else. Trapster also should have just sold his paste rather than use it for crime. The Frightful Four might be better as goons working for a better villain. The Mad Thinker is more interesting because he has a better gimmick and occasionally is written as a sympathetic villain, though too often he is written as a generic mad scientist and the latest direction the comics took with him was bizzare.