It's true that the English Premier League is always a widely watched and favorite league for many people around the world. Of course, many countries broadcast the English Premier League—more than 200, of course—and this is truly extraordinary. There are indeed many factors contributing to the Premier League's status as the world's number one league, with many viewers, including the abundance of star players and the substantial transfer budget. So, this is certainly a success for England, as many countries have leagues like this, but it's certainly very difficult.
The last five Premier League teams have been great, like Manchester City and Chelsea. Of course, we don't know what will happen next season. But Real Madrid is truly extraordinary, having won the most Club World Cups, and Barcelona is also very strong. Yes, even so, it's certainly not impossible that one day a Premier League team will lead the way in winning the most Club World Cups.
Yes, Al Hilal did reach the final. As far as I remember, Al Hilal was defeated by Real Madrid in 2023, if I'm not mistaken.
The difference premier league and other leagues is the fandom. There is literally nothing else that is different at all, it is clearly the fans are the difference. Because your team could be in league two, and you still support the team you are from. In situations like Bundesliga, or ligue 1, you see top teams, like Bayern and PSG get the most viewers, because they are successful, a team like Lyon, who won so much, ends up losing out and nearly even relegated because as soon as you are not good, you lose fans. Not that many nations in the world, has crazy fans all spread around the board.
City was one of the best in premier league, won 4 times in a row, and they still didn't had the most fans, other teams had great fans, you can go to some 5th division game, and you will see stadium full of fans. You won't see that in any other league.