@zombiemowlcher: I was just pointing out the popular misconception, that's all.
Also I hear Supes did fight alongside with DC's Thor for a long period of time (hundreds of years maybe?) in Valhalla while fighting demons. I myself didn't know this but Death Battle mentioned it and that's why I brought it up.
So yeah being a good person and a warrior, Supes sure as hell should be worthy to life Mjolnir.