Probably Dr. Who world wide. He has been around forever and is a primary character throughout. Han is a principal as well, but was only in a few of the films. You also have to remember Dr. Who predates Star Wars.
hans solo
Han Solo
Worldwide would have to be Han Solo
Han Solo is more famous
They're both just as famous as each other
Han Solo
Han Solo
Han Solo
Han Solo
Han Solo
Han Solo
Han Solo
Han Solo