No, fractals are much more symmetrical.

Wouldn't a perfect sphere not necessarily apply to a black hole given its characteristics? Its surface can be in a different place than its event horizon right? Anyway would the closest thing to a perfect sphere be a Neutron or Quark star?

Depends on what you mean by edge. If you mean edge in the sense of the physical limit: it is unknown; if you'd see anything at all. More than likely, our universe has a vastly complicated curve to it that from our position in it, cannot be seen. Not allowing for there to be an actual edge.

If you mean edge as in the end of the visible universe, you would simply see more universe. With earth being at the edge of that visible universe (assuming that space's expansion is the same throughout, and that we got to said point instantaneously). And that visible edge, just like ours is steadily receding.