Buy what you need when you need it. Powdered sugar makes a smooth cake that dries out quickly. It is best used in special cookie recipes and in icings. Brown sugar makes a moist cake that keeps well. Granulated sugars have no variations any longer.
Fine granulation is required for cakes.
Honey , crystallized, used to be used for sugar in colonial days. Honey has special recipes that can use it in its natural form. It is very sweet. An egg whose shell has been cracked is no longer fresh. It is subject to bacteria.