I've seen a fair amount of happiness research, and happiness tends towards the "liking" end of the scale. What makes people happy is giving to charity, meditating, long walks, and so on; what makes people unhappy is commuting, work stress, and child-rearing. Religion, old age, and living in Utah also make people happy.

A life designed to maximize happiness, according to happiness researchers, would not be a hedonistic orgy, as one might imagine. You are actually happier with a fair degree of self-restraint. But it would have a lot more peaceful hobbies and fewer grand, stressful goals (like strenuous careers and parenthood.) To me, the happiness-optimized life does not sound fun. It is not something I would look forward to with anticipation and eagerness. Statistically speaking, we'd like such a life, but we wouldn't want it. Myself, I'd rather be given what I want than what would make me happy.