RPG-Maker
Game Maker - Proably the easiest but not for rpg's... and so far no ones truly made an authentic mode7... I tried and failed
ika - Probably my favorite of all 3, it's easy to use, it uses a simple language, but it takes a couple hrs to learn. But don't be feared at all when you don't know how to do text with npc's. It's basically a python file with the name of the map.
Exaple:
townsquare.py
def zelda():
text("I'll tell you about how %(red)smagic%(white)s works later.\n"
"It's neat-O." % colours)
