RMXP got released around 2007.
It got a different Mapping System with more standard Layers, standard Fog, and the beloved 3x3 autotiles instead of 2x2 like used in most other makers.
Its most flexible with standard Tileset Map making but also not the easiest one. Besides that there is nothing else special or good about it.
I would wait for Steam Summer Sale and Check out RMMV Demo now.
One can fill lists with stuff that is awesome in MV which the other older Makers are not able to achieve.
If your Friend knows about rpg maker, than ask him why xp over mv? because mv is superior in everything except the difference i mentioned above.