A lot of it also depends on what village government structure you have as well. For example, a group of friends that knows each other well especially from other sources other than Haven and Hearth (ex. EVE or Touhou) would benefit more from a system where more things are public, particularly craft accounts.
When creating alts, you will still want LP per hours but you are also more favoring curiosities that has fairly long duration but give excellent LP when finished, such as spider forages and shew breads. Cone cows, bark boats are not good curiosities for this purpose because despite having good LP per hour, they are short lived and give a small amount of LP when finished. The other thing you want to favor is if you can produce the curiosity at least as fast as the characters consume them.