Real Madrid dominate both Spanish La Liga and Champions League, with Barcelona placed second in the league.

The two biggest football clubs in Spain, Real Madrid and Barcelona, have been dominating their respective leagues for years now. Real Madrid has won four consecutive La Liga titles since 2016, while Barcelona has won the competition three times in the past five seasons.

In the Champions League, Real Madrid has also been a dominant force, winning the tournament six times since 2014. The club's success is due to its strong squad of players, which includes some of the best players in the world like Cristiano Ronaldo, Luka Modric, and Sergio Ramos.

On the other hand, Barcelona has struggled to maintain its dominance in recent years, losing the league title to Real Madrid last season. However, the Catalan giants still have a talented squad led by Lionel Messi, who has been one of the greatest footballers of all time.

Despite the struggles of Barcelona, they remain a formidable opponent in European competitions, having reached the final of the UEFA Champions League twice in the past three seasons. Their success in Europe has helped them maintain their position as one of the top teams in the world.

Overall, it seems that Real Madrid and Barcelona are the two strongest teams in Spain and Europe respectively, but it will be interesting to see how they fare against each other in upcoming matches.