The only thing that can prove that the Saudi League is better than the French League is by bringing together several strong clubs in the Saudi League with several strong clubs in the French League so that we can judge whether what Ronaldo said is true or not because we as football lovers and the level of competition in Europe and Saudi Arabia are different and the SPL itself has never experienced the tight competition of the Champions League.
Ronaldo is just doing public relations for the Saudi Professional League. There is no way you can compare the French League and the Saudi league in terms of quality and every other aspect. A league that is spoon-fed by the Saudi government. The French League generates funds to run the league while the SPL depends solely on the government to survive. How many players have the Saudi league groomed and had moved to top clubs in Europe. The Gulf League is in its infant stage and needs time to grow to compete with League One. The SPL is not in the same standard even with the Swedish League.
I can't see this as something that can be compared, because I see that it depends on the point of view, or in other words everyone will definitely have a different view, and that's okay. Just looking at where they are is very different so this can't be compared between one and the other. other than that there is nothing that can be taken from this comparison. So actually it's not important to debate who is the best between these 2 leagues, especially if we have to "justify" by bringing together 2 teams that are considered the strongest from each league, that seems ridiculous to me.