Taking it as a given that Tesla was the superior inventor/engineer/intellect, one must also consider the term “importance” in relation to the question, whose inventions have had a greater overall impact on modern life? At that point you kind of have to get into how many of Edison’s ideas were derived from Tesla’s work. Where would the world be today if there were no Edison and where would it be today if there were no Tesla? I think a case could be made either way.