The most challenging maps for you.

You set the desired difficulty level and play.

You're talking as if the project is already launched, and the project author (who is he?:D) is consulting with the Heroes community for advice and suggestions.:D

Well, I don't know, a smart computer is certainly good, but it's still more interesting and familiar to play against people. Although there is one noobish advantage - the computer will always give you an auto-win, regardless of whether it wants to or not.:D