That is an impossible question to answer with quantitative data but just for discussion what do you think?
I would say women.
At face value you would think men since they love cars, boats, aircraft, and stuff which is mechanical.
BUT
I think women use more overall because they have more power in decision making in the home economy which is the largest chunk of the economy (the consumer portion). Women have more stuff like clothes, makeup, 8 black shoes, etc. Some also love big SUVs while some decide to make their girlfriends green with envy buying a big house in a new suburb which was deforested and raped wildlife.
I think I am posting this because I found out about a guy I know going bankrupt tonight. He was making about 45 grand a year and his wife nagged him to buy a house in a fancy area which they could not afford. Then she made him bu her a new car. This summer she wanted a vacation. When he got back his bills added up and assets were less than liabilities.





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