Here's a strange suggestion. What about Andrew Jackson and John Adams as American leaders in addition to the already confirmed Washington? They're certainly not as great of presidents as the standard Washington, Lincoln and Roosevelt. But I think they could be given a significantly different personality which would make gameplay more interesting.
I'd imagine Adams being very diplomatic with a domestic economy on the cottage model leading to a technologically and economically sophisticated America which pushes for trade with the rest of the world.
Jackson on the other hand would be very militaristic, his domestic economy would focus more on farming, population and production. This would result in an America which lags slightly in tech, but is aggressive and imperialistic.
The standard Washington, Lincoln, Roosevelt trio just seems to bland to me, I attribute a lot of the same personality traits to these three leaders, and would expect them to lead America in a very similar manner.
I'd imagine Adams being very diplomatic with a domestic economy on the cottage model leading to a technologically and economically sophisticated America which pushes for trade with the rest of the world.
Jackson on the other hand would be very militaristic, his domestic economy would focus more on farming, population and production. This would result in an America which lags slightly in tech, but is aggressive and imperialistic.
The standard Washington, Lincoln, Roosevelt trio just seems to bland to me, I attribute a lot of the same personality traits to these three leaders, and would expect them to lead America in a very similar manner.