The IFFHS (International Federation of Football History and Statistics) have rated the top 25 leagues in the world today (I deliberately picked the top 25 as this includes Scotland).
|12.||Republic of Korea||331,5|
To be fair I haven’t seen the majority of the leagues but their rating system seems to favour the South American countries maybe because they are mid-season and the European leagues are pre-season.
Off what I have seen of Ecuador’s Serie A 14th place seems quite kind but Mexico’s Premier Division should be higher placed than at 11th. Saudi Arabia and Malaysia are notable inclusions at 15th and 23rd.
Personally I would have the EPL at the top closely followed by La Liga then the Bundesliga. In y opinion the Brazilian and Argentinian leagues are the strongest on their continent but wouldn’t be in my top 5, probably the top 10.
Personal top 10 leagues.
English Premier League
Italian Seria A
French Ligue 1
Brazilian Série A
Argentine Primera División
Portugese Primeira Liga
Mexico’s Liga MX
Chilean Primera División
I have to stress that I have hardly seen any of the leagues in Asia so do not have a full appreciation of their merits. To date I have not been impressed by the MLS.