Attack
Forward - Cristiano Ronaldo

This one is a no-brainer. With 311 La Liga goals in the last ten years for Real Madrid, Cristiano Ronaldo left the Los Blancos in 2018 having won everything with the club, establishing himself as one of the greatest to ever play the game.
Without Ronaldo, Real Madrid's trophy haul over the past decade would have been significantly reduced. The Portuguese superstar was his team's best player in both their La Liga titles this decade, and he has stepped up for the club whenever they required him to. A nuclear weapon on offence, Ronaldo will always remain one of the first names on such a list.
Forward - Luis Suarez

You have to feel sorry for Karim Benzema - the striker has been in the league way longer than Luis Suarez, but quality-wise, he does not come close to the magic which Suarez weaved in his first three seasons with Barcelona.
Benzema has 160 La Liga goals in 327 appearances - Suarez has 140 goals in 177 appearances. Suarez is the only player apart from Ronaldo and a certain Argentine superstar to have won the La Liga Golden Boot this decade, and he has been named into the La Liga team of the season twice. A former La Liga player of the season, Suarez is a goalscoring machine who is equally adept at creating goals for his teammates.
The striker has won the La Liga every single season but one since his move to Barcelona, and his inclusion here should be without question.
Forward - Lionel Messi

With an astounding 431 goals in 463 appearances and a record 10 La Liga trophies, the Spanish first division has never seen a player as great as Lionel Messi.
The little magician holds almost all the La Liga records - most goals, most assists, most Golden Boots won, etc. The Argentine captain has been the primary reason for Barca's unparalleled dominance in La Liga over the past ten years, and it seems that the trophy is not going anywhere else until the forward leaves the club.
An elite dribbler, finisher, and playmaker, there can be no debate that no single player has been as dominant as Messi in the past decade of Spanish football.
Also read - Real Madrid's team of the decade