RMMV is the one which let's you code with JavaScript, right?
That's fun, I got a copy of a game made with MV, and as soon as I figured that out, I just played with the code. You can edit basically everything with Notepad.
Only with Pokemon Essentials.
And I only have one project so far, with my friends. With RMXP, they can add stuff to the project easily and don't have to stick with the restrictions of ROM hacking.
At the present time, I'm suffering from a stomach-related ailment that results in excess rectal discharge to the point where the ejected material is pure liquid. >_>