You should start by a list of things you want in your game, then take a look to base engine and only if a thing is not in base engine or is not as you want it to be, check for addons.
I hav'nt look to RPGM for years but I remember dozens of wonderful plugins, most of them totally useless for most projects. The quality of a plugin is irrevelant if the game don't need it. (AKA you don't need a wonderful and deep craftingsystem, if you don't care about having crafting.)