I believe honey is half fructose/half glucose. It doesnt have much nutritional value so it wouldn't make a really good replacement for sugar, perhaps a little better. Splenda might be a better choice.
I also read somewhere that sugar has the glucose and fructose molecules hooked together, whereas honey has them individually. I'm not a chemist, tho, so I don't know if that's factual, or even what impact that has. Take it for what it's worth