I would say Sonic the Hedgehog.
Purely because I think you mean Frankenstein's Monster.
Frankenstein was the Doctor that created the monster and technically not the name of the monster.
sonic the hedgehog is more famous
sonic the hedgehog
sonic the hedgehog
Sonic the Hedgehog
Sonic the. Hedgehog
Sonic the Hedgehog
sonic the hedgehog
Sonic the Hedgehog
sonic the hedgehog
Sonic the Hedgehog
Sonic the hedgehog
Lady Gaga is currently more famous than Sonic the Hedgehog.