These three wonders go together like corn chips, melted cheese, and peppers. But since they're all National Wonders, you can only put two of them in any single city.
So, question: which is your favorite combination?
Heroic Epic + Ironworks = Super military production city. In the late game, you'll probably be able to get a bomber or an armor unit every turn here.
West Point + Ironworks = Elite unit city. Beef it up further with an academy if you're playing Warlords and you can get Level 4 units right away. Doesn't build stuff as fast as the first combo, but builds it better. Ironworks' bonus is to all production, which means that when you're not gearing up for war, you can crank out improvements and Wonders.
Note that this is the most expensive combo to build in terms of hammers. On the other hand, 4 GPP/turn gives you a decent chance of popping a Great Engineer -- the other two combos combine Artist and Engineer GPPs.
Heroic Epic + West Point = Elite unit city again. Similar to the WP/IW above, except that the production bonus only applies to military units.
So this is a much weaker combination... but (1) it costs much less, since Heroic Epic is far cheaper than Ironworks, and (2) you can start building it much earlier in the game, since you're likely to have Military Tradition long before Steam Power. (No, not always. But likely.)
I guess a fourth combination would be "none of the above", which would be the case if you always prefer to combine two of these wonders with something else -- like West Point/Globe Theater and Ironworks/Red Cross.
Anyway. Who likes what?
Waldo
So, question: which is your favorite combination?
Heroic Epic + Ironworks = Super military production city. In the late game, you'll probably be able to get a bomber or an armor unit every turn here.
West Point + Ironworks = Elite unit city. Beef it up further with an academy if you're playing Warlords and you can get Level 4 units right away. Doesn't build stuff as fast as the first combo, but builds it better. Ironworks' bonus is to all production, which means that when you're not gearing up for war, you can crank out improvements and Wonders.
Note that this is the most expensive combo to build in terms of hammers. On the other hand, 4 GPP/turn gives you a decent chance of popping a Great Engineer -- the other two combos combine Artist and Engineer GPPs.
Heroic Epic + West Point = Elite unit city again. Similar to the WP/IW above, except that the production bonus only applies to military units.
So this is a much weaker combination... but (1) it costs much less, since Heroic Epic is far cheaper than Ironworks, and (2) you can start building it much earlier in the game, since you're likely to have Military Tradition long before Steam Power. (No, not always. But likely.)
I guess a fourth combination would be "none of the above", which would be the case if you always prefer to combine two of these wonders with something else -- like West Point/Globe Theater and Ironworks/Red Cross.
Anyway. Who likes what?
Waldo