Ovid is more influential because he is easier. Those of us with better Latin, with more discerning, with--dare I say?--better taste recognize that Propertius' Elegies beat Ovid's in every category.
Here is a little equation entitled "Andrew S. is wrong":
Passion + Craft = Sublimity.
Wit + Craft = Cleverness.
Sublimity > Cleverness
Oh! You just got burned, dude!