Dean Cain on the other hand, is probably the best Clark Kent on screen. I think he nails the Clark role almost to perfection. His Superman on the other hand is always looking like he's really uncomfortable in the role. Maybe they wanted to play it that way? But it took extra effort to see him in the costume.
Yeah; I've always thought that came from the difference in character stories. In the Reeve movies, Superman was Kal-el playing Clark Kent as a disguise. With Dean Cain, he was Clark Kent wearing Superman as a disguise.
It did seem to me that Cain always felt uncomfortable in the costume; but maybe it's because he always had his arms folded (which he may have been directed to do).