Greatest Superpower

An open question, please leave your response as a comment.  I want to know what people think.  For myself, I think I would have to say Invisibility.  This includes the ability to turn it on and off, because that was a setback someone mentioned to me.  I would not wish to live my life like Skinner from The League of Extraordinary Gentlemen...  I thought for a moment about not having to sleep.  Because the obvious advantage of not being tired and the extra time is glorious.  But with more thought I realized that sleep is extremely enjoyable and... dreams? No brainer...