Table sugar is sucrose, which is made up of two molecules bonded together. When we eat table sugar, our stomach has to use its own enzymes to separate the molecules apart before we can use the sugar's energy. Honey is quite different. The bees have added a special enzyme to the nectar that divides the sucrose into glucose and fructose -- two simple sugars for our bodies can absorb directly.
Hence, honey vs sugar, honey has a healthier Glycemic Index (GI) which measures the negative impact of a given food on the blood-glucose level. The lower the GI rating, the slower the absorption and infusion of sugars into the bloodstream and hence a more gradual and healthier digestion process.