So if this 65/25/15 is games created it doesn't actually represent 65/25/15 percent of users play a particular type of game. It just means of 100 games created 65 are MLB.
So all that can really be garnered from it is that MLB is started significantly more than the alternatives. That to me would seem fairly obvious as that is surely the reason for buying the game in the first place (other than those who purely buy it to replay history). Fictional players (and I include myself in that) in my opinion come to the game to play MLB (or other included leagues) initially. From there, many see the countless possibilities to create their own universe, others try historical and others have no interest in doing anything but MLB and each and everyone of them is perfectly entitled to play and enjoy the game as they see fit, and none of them are more important than any other customer.
Any improvement to the game will improve all aspects of Fictional and indeed Historical as time goes on, after all game additions like the rule 5 draft etc can now be played at the appropriate time in what is now historical MLB.
I would imagine a lot of users play more than one type of game. I have played all three and will continue to do so.
Out of interest I wonder what % of the games are other leagues like the Japanese League? Is there a growing customer base in Japan? I would think Steam might have helped with that. It could be argued work on a historical Japanese League would bring in a lot of customers in that case
