To me, gender has never been that relevant as far as an individual’s happiness. Some men feel over-worked and stuck in a dead-end job or marriage, and some women can have all the freedom and money in the world and still find things to complain about or be angry about, such as feminists and man-haters who have said money, power, and freedom and still walk around miserable.
Honestly, the people who have had the happiest lives are the ones who come from two-parent households where both parents have four-year or more degrees and relatively wealthy. The parents love the person and they have a large extended family. The person is boosted with confidence and self-worth since day one and go out into the world thinking they’re unstoppable. Or in other words, the happiest people I’ve seen are the people with no problems.
If you’re asking in general, men seem easier to please and happier, while women seem to complain more, to me. Especially feminists with minor First World Problems and non-issues. In general and in my opinion, women seem to find way more things to complain about, while men are relatively easy to please: give us a good fulfilling job and a good woman (or partner, or whatever you’re in to) and we’re generally happy. Too bad both are pretty hard to obtain.