from what I know this Mod/patch (ips) is where it all started, I mean like if you go to the Moemon biggest member discord, this is the real one ( where Moemon started ) from what I know, and for MoeMMO mod you can go to this link
And the answer for your question, there is no better one, cause the other moe mod are using the discord community sprite, and what makes it different with the other one is, for starter Maid's Moemon Mod! or MMM! are they change few sprite with maid costume that's all. well After few research I do not know what's the different between MMM! and this one, cause after I read their forum, it's the same,, but What matters are they really used the global moemon discord sprite so it's the same, maybe you see the difference when you try it, but from what I tested everything look the same.
and for the other Moemon like Pokemon Moemon new sprite update 2024 v2.0 they still using the same sprite from the community and make a little tweak to the shiny moemon so they had the same as original shiny pokemon color.
and there's the other one that use the front sprites into the back sprites, so when you battle your pokemon will use the front sprite like the enemy, and some last evolution sprite are changed into Mega Moemon sprite, that's all.
That it, that's what I knew so far, you could test it one by one, but if you don't want to waste your precious time, the link I mentioned from this site is the original one, and the other are the same they just make little tweak here and there that's all.