The sea as an opponent in the South Atlantic

Which stretch of water would make the most interesting naval war?

The South Atlantic, because difficult sea conditions can become an active combatant in a naval battle.

A Great Lakes war would be visually and tactically intriguing, but the South Atlantic offers the more interesting waters to fight over. Its sea conditions make weather an active participant in battle, especially for Age of Sail engagements. The answer points viewers toward the operational consequences of geography rather than treating sea space as a neutral backdrop. Rough water, wind, and visibility would test seamanship as directly as gunnery.