"call" is far more common. I'm sure you're quite familiar with it, eg. "What is this called?" "You should call your teacher 'Sir', and not call them by their first name." "You call this weather hot? In Brazil summers are much hotter!" It basically means "refer to". "to name" usually means to give an official title. It's used with 'as' when the title is a word (instead of a name). "After Fabio won the war against the monsters, the King named him 'Fabio the Great'" "Fabio was named as the new CEO of Apple" "The police named Alan as the main suspect in the crime."

Hi Fabio, I can't really offer an in-depth grammatical explanation, but I hope that the following sentence elucidates the difference a little bit: His name is Robert, but he likes to be called Bob. In some contexts they are interchangeable, but not in the above sentence, for example. :)M