Turtling and peace is not the way to victory! You should not be making peace unless it serves your motives in defeating the enemy. So suck it up and DON'T TURTLE! No nation ever became great just by turtling, they took great risk and confounded there enemies with there superior tactics. As for a nation that is best for your..... plan, id suggest britian or MC. Heck, if you ally with Westaphila and Hannover, you could play as the dutch and be safe.

But COME ON! Dont do that. You should take on Prussia, the ottomon empire, or Russia. Combat and war is the best reason for playing total war!