9
Terraforming: why the Moon is a better target than Mars
(bigthink.com)
Cover author: Michał Kałużny http://astrofotografia.pl/
Both places are incredibly hostile to humans and will require a massive amount of resources to change that.
Both have their advantages and disadvantages.
Saying one is better than the other and implying that terraforming either of them will be anything but a centuries long process is click-bate nonsense.