Is having some free time an important factor in a job decision?

Personally, it depends on each person. If you find the job that you love, maybe a lot of free time isn't for you. If what you love is spending time with your family or hobbies that won't earn money, then yes, the lower-paying job with more free time is probably for you. Don't take a job with no free time, though, because it's not healthy to have no relaxation or free time. It also depends on the job and how much it lines up with your "dream job". Ultimately, nobody else can answer this question for you. It depends completely on your personality and your likes/dislikes, and you will have to weigh the options when you know all the facts.