You get to choose one super power you see on fictional media, What do you choose ?

Legit, in the real world, wolverine's healing factor is the most useful. Other stuff is about tricks. His kind of healing means no cancer, no Alzheimer's, no strokes, no heart attacks, nada. A long, healthy life free of disease of almost any kind.

The only drawback is the semi-immortality. A long life watching others die would suck hard. It's already bad enough with a regular life span.