#2 Johan Cruyff
Johan Cruyff played for Barcelona from 1973 to 1978 and is considered to be one of the best players they ever had. He joined from Ajax in mid-1973 for around $2m, which was a world record transfer fee at that time.
Not only was Cruyff a superb player for Barcelona but he was a great manager, too, adopting and enhancing a footballing philosophy known as Total Football, which made the Netherlands so great during the 60s and 70s. He experimented with it at Barcelona and became a huge success because of it.
He won La Liga in his debut season for Barca and was named the European Footballer of the year. Throughout his time at the Nou Camp, Cruyff was by far one of the best players in the squad and showcased composure and skill to an extent that hadn't really been seen in Spanish football before.
Cruyff passed away in 2016 from Lung Cancer.