Both programs can fit judging by your descriptions. I think the best way is simply to try by yourself.
Here is the list of scripts availables for VX on this site:
http://www.rpgrevolution.com/forums/index....showtopic=45637.
The same list, but for XP:
http://www.rpgrevolution.com/forums/index....showtopic=25015.
Experiment a bit with what is available and see what is easier for you. I'll move the thread to General Game Engines discussion, since it's not really a VX support topic.