Hi, Phished880! Welcome to "Gotmead?"!!
Of course your own personal taste will influence your perception of how sweet a particular mead tastes. As well, the balance between sweetness and other flavors (acidity, alcohol content, tannins, etc.) will change the perceived sweetness. But since people seem always in need of classifying systems to describe things, in order to generally classify the amount of residual sugar in a particular mead and to relate that to approximate sweetness, several folks have come up with sweetness scales to classify meads. One of them is as follows, relating the final specific gravity:
Dry 0.990 - 1.005
Semi-Dry to Semi-Sweet 1.006 - 1.015
Sweet 1.016 - 1.020
Dessert (or very sweet) above 1.020
Again, these are classification guidelines, not to be taken as absolute reference values. Just because one mead finished at a specific gravity of 1.015 and another clocks in at 1.017 doesn't automatically mean that the first tastes less sweet than the second.
I think this is what you were after with your question. If not, then please explain what you're after in a little more detail.
Hope this helps!