Thats absurd, RMXP isn't overused, its overused by lousy Eclipse games never to be seen by the light of day
I wouldn't advice using it because its been tainted by newbies who use sadscript, but it go ahead.
If you can make a game look as good as Godborn looked back from then, you're the next ZoSo, seeing as how I don't even know how he did it. Just try your best with mapping and getting your resources, don't try Eclipse, because all you'd get is one left moving in front of the other and back and a paperdoll sheet with unique frames for every 12 frames.