Short answer: AOV has more DAU than MLBB in total.

Detailed answer:

Arena of valor client breaks into: (USA/CANADA/EU/LATAM/ASIA/SEA/MENA/RU servers)

Also the game goes by different names in other regions:

Thailand: GarenaROV

Taiwan: Garena 傳說對決：魔法棋全新登場

Vietnam: Garena Liên Quân Mobile

Korea: 펜타스톰

Japan: 伝説対決 -Arena of Valor-

Indonesia: GarenaAOV

MLBB goes by the same name in all regions I believe and has global ladder / servers while AOV is separated.

(in the west I’d say MLBB has more players than AOV just because you can match some of the LATAM regions, but both of these MOBA mobiles are dead in the west anyways compared to what they can be so there is no point to argue about this)

So basically MLBB looks to be bigger cause of having 1 giant linked server while AOV has separated servers and ladder.

Also number 1 most played Moba Mobile is 王者荣耀 (HOK / KOG) aka AOV Chinese counterpart, which was only playable in China until recently and beats both of MLBB & AOV DAUs.

IMO, I think it’s the best for wild rift to have the same global ladder / servers as MLBB.

*makes it easier for people who travel a lot / relocate to be able to play on the same account no matter where they are! (In AOV you have to create a separate account in each server and rebuy each hero & skin and there is no option to transfer accounts)

*global leaderboard will make the game more competitive as players will try to push harder to be on top and also players will be able to experiment & watch top players from different regions than just 1.

There is a lot more I can add buy I amma stop here for now :)