Build an ultimate structure deck?

The flaw in your idea is that each deck is from a different time with different banned lists. So many of the good cards in each might be banned. Also, most of the themes don't go together and so by combining the decks you create a deck thats strictly worse than any unaltered structure deck. The only decks that play well together are the Warrior and Spellcaster structure decks. At best this ultimate structure deck would a combination of those two decks with the Monarchs from the other decks are tribute monsters.