The way I look at it, all of the starting XI on any big club is world class. Ignoring salary and transfer fees, any club would be happy to have them. A mediocre player on any of the big clubs would be the best player on a small club in a lesser league.
That’s different from asking if they’re the best 2 or 3 in the world at their position.
You can get your soul crushed in Championship where it’s invisible to the media and social media other than club supporters and local news. No VAR to complain about. All the refs are poor. The league is so inconsistent that most of the league is a month of good form away from promotion playoffs and a month of poor form from worrying about relegation.