Some settings (5 vs 6 vs 7 vs 8 player) can make no noticeable difference. Also the exact same settings on a slightly different map don't change much in the game play. Could be useful, but maybe at some logic to rule out the different game settings that change the game by a great deal.
ie, 2 player is not similar to anything. 3 player is similar to 4 player. 5 player is similar to 4 and 6 player.
Classic is similar to Asia/Europe/USA/all standard maps. All conquest maps are similar. All objective maps are similar.
Build full logic to that effect and the tool would seem useful more often. It's more work though, so you could just stick with the one-off setting originally mentioned
