HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

Incorrect

I'm sure you're mistaken; perhaps you mean 1 skill level against all the features of the subject?
It would be interesting to conduct several battles between decent players on a clean, stripped-down SOD against newcomers with the HD mod. However, you'll have to approach the former with a knife (figuratively speaking).