Thor’s. He’s far more versatile and it doesn’t appear that he has to adjust his perceptions just to talk normally with everyone else. Having to do that would be tedious.
Superman can adjust his perception so that he doesn't always see the world in slow motion or see everything as just atoms
Only problem with superman's power set is the same problem you'd run into with Thor's ps, which is to learn how to hold back all that strength so you dont break a building just by touching it