Not to sure about fruit wood, I know hickory, oak, pecan, mesquite needs to be seasoned, at least for me. I find that if these woods are seasoned for about a year they have a real nice flavor and not that bitter harsh taste you get if they are green, my two cents worth. But BBQers are a diverse group, different parts of the country like different things. So it is really up to you to decide what flavors you and your family enjoy. I cook with more pecan and hickory. I like the fruit woods too, I have used apple, cherry and peach. ( I can get peach sometimes because we have quite a few peach orchards around here) I enjoy trying different woods.
Gary