Which is the best game of the Xavi era?

FC Barcelona defeated Osasuna 4-0 at Camp Nou on Sunday with another impressive display from Xavi Hernández's Barça. The blaugranes have picked up 19 of a possible 21 points in the league have cemented their place in the top four in La Liga. 

"We put in a great performance, one of the best since I have been here. It's a morale and confidence boost," said the Catalan coach after Sunday's win at Camp Nou. Which leads us to the question...

Which has been the best game of the Xavi era? 

We have four candidates:

Barça v Osasuna

A perfect evening at Camp Nou as Barça went ahead early in the game and never looked back. 

Barça v Athletic Club

Another impressive win at Camp Nou in La Liga with players coming off the bench having a big impact in the second half. 

Napoli v Barça

Barça needed a win after a 1-1 draw in the first leg at Camp Nou in the Europa League and they did not disappoint in the Diego Armando Maradona stadium. 

Valencia v Barça

Another stellar display, this time away from home in Mestalla in La Liga, a win that lifted them into the top four.