They are, without doubt, the two best sides to come out of Spain in a long, long time.

One of them created the entire idea of tiki-taka football, using their unique, innovative style to win a treble, dominate Spain and claim two Champions League titles.

The other has just become the first side to EVER retain the Champions League, giving them a remarkable three European Cups in just four years.

Yes, Pep Guardiola’s great Barcelona team from around the end of the Noughties and Zinedine Zidane’s current Real Madrid side are two of the great XIs of the 21st century.

Barcelona coach Josep Guardiola celebrates with the trophy after the UEFA Champions League final between FC Barcelona and Manchester United FC

The question is… which of these two legendary teams is better?