The Real Madrid team and especially Karim Benzema who scored three goals against Barcelona put on an amazing performance. Due to the fact that the most important rival of Real Madrid has been kicked out of the Copa del Rey, Real Madrid now has a greater chance of winning the trophy, and on the other hand, after losing three El Clasico games in the season, the team may be able to finally retaliate against Barcelona.
Benzema was making hatrick against barcelona. I remember when so many barcleona fans were mocking him if benzema was only able to do hatrick against small clubs. That has proven that benzema is real world class striker. 
If you have been watching full matches and you would able to see something interesting about gavi and how he has been triggered by real madrid's player. I would not be surprised to see that if gavi is very emotional.
The next match gonna be the easy team for real madrid. It seems like the chance for madrid to win the trophy is very high at this moment.
I consider about how good the performance of real madrid against barcelona after it was using 4-3-3.
Real Madrid's CDR final will be against Osasuna and it is clear that the CDR title this season will belong to Real Madrid. The 4-3-3 formation seems to be going well, maybe Ancelotti changed some strategies in that formation and Xavi still doesn't know what was changed in that formation, it's proven that Camavinga has managed to pocket Raphinha throughout the match and Ancelotti already knows the weak points of Barcelona's defense this season we know pretty strong.