Honey and maple syrup are identical to "sugar". They are all a combination of fructose and glucose.

The only difference is that the latter two are syrups, i.e., they are dissolved in water, and because they're biological products they will also contain marginal amounts of other compounds, generally speaking minerals that have nothing special to them and can be gotten from plenty of other places without the associated sugar.

So yes, sure, they have "less sugar" thatn pure solid sugar cubes, but that's like saying that Coke is better than sugar because it has less sugar than sugar cubes... Which makes it also "better" than honey and maple syrup of course.