Cristiano Ronaldo (Left winger)

His work rate was great in this match, especially in the first half. He made a brilliant run taking on Barca's defenders from the left side and smashed a great shot on target, saved by Ter Stegen. He also created chances for Benzema and Ramos in the first and second half respectively, but they failed to convert those chances. He was unlucky to not get on the scoresheet himself.
Lionel Messi (Right winger)

Didn't do much in the first half but came back strongly in the second half. He converted the penalty and doubled the lead for his team. He then went on to assist the 3rd goal to Alex Vidal to wrap up the game. Apart from this, he created the most number of chances and the most number of successful takeons. He was undoubtedly the best player in this game.