I have to go with Grindy on this one, i think that he was more of a Dark Lord than Voldemort is, i mean, he conquered the whole Europe in just 6 year while Voldy fail to conquer only Britain in 14. Plus, i still can't get over how stupid his whole Horcruxes plan is, like, seriously, okay, If you want to split your soul, maybe use a non-descriptive thing that not easily traceable and linked to you, like, idk, a rock that you then throw into the bottom of Marianna or something.