That depends on what you mean by "promising". Are you talking about the play-to-earn profit or the rising popularity? Basically, you should took a look at the numbers of people the games have amassed over the years and who currently has the most players if you want to figure out which is most played. But that won't mean their rewards will translate highest among the other games in terms of USD Dollars.
Personally I like AXS but I would probably not invest my own money in it just yet.
With the above listed play-to-earn games I only invested and played Axie Infinity ($AXS) and for me Axie still holds the number one spot in terms of numbers of players or participants in terms of player. But as we all know the number of player decreases compared to last year player because of the sudden changes of game mechanics but still the present number of players are still considerable to be the top most played game.