Long live the papal state
I'd pick the Papal State.
They get bullied way too much by the other Catholic nations.
I wish it would anger the catholic nation more if anyone DARES to annex it (I mean more than a CB).
Also,
they should get a special income from the sale of indulgences.
I also feel sorry to all the native american tribes.

Which should be more aggresive, burning stuff to the ground if no effort are taken to please them, in short, being the threat it was to the colonial power at the time. Now, when at war, they won't dare move their 30000 warrior to burn nearby unprotected enemy trading posts. arg