Who is more famous Shrek or Simon Cowell?

It depends on the specific metric of fame being used. If we consider global recognition, Shrek is likely more famous. Shrek is a popular animated film franchise, and the character has become an iconic figure in popular culture. Additionally, the Shrek franchise has generated various merchandise items and is widely recognizable around the world.

On the other hand, when considering influence in the entertainment industry, Simon Cowell may have a larger impact. Cowell is a prominent businessman, television personality, and music mogul. He has significant influence in the development and promotion of musical talent, particularly through his roles on TV shows such as "American Idol" and "The X Factor."

Both Shrek and Simon Cowell have achieved fame in their respective fields, so their prominence ultimately depends on the perspective and context in which their fame is evaluated.