Certainly concur with Elk here my eight-year recently enjoyed a Fistful of Lead Napoleonic game and he is keen to try the rules for other settings. At the same time, the rules can appeal to experienced wargamers too. So if you have as yet not tried Fistful of Lead what are you waiting for?
Great looking games in that video with the only possible exception being Axis and Allies which is really not my cup of tea. Especially like the Masters of the Universe game.