#3 Quality of Football

Pep Guardiola's appointment at the Barcelona helm revolutionized the footballing system in Catalunya for good. Not only did Barca's success under the Spaniard made them one of the finest squad in world football, it was a foundation for Spain's success in the 2010 FIFA World Cup. In Madrid, Jose Mourinho instilled ruthless counter-attacking, which is still a fundamental part of Zidane's side.
Some of the finest footballers in the world play for these two sides, partly due to the impressive youth systems of the two clubs and party due to the massive budgets at their disposal. Both clubs are known for their strong midfield.
On the current managerial front, Zinedine Zidane has established himself as a solid manager in a very short period of time. The Frenchman guided Los Blancos to the Champions League final thrice, winning twice. Real Madrid will face Liverpool for the 2018 Final in Kyiv. In Catalunya, Ernesto Valverde coached the Azulgranas to a domestic double in his first season.