For the first time in my time playing CKII I decided to try out NK-mode. Here are the results.
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To compare with how one of the best Lords was doing playing the vassal game here is Eddard Stark most honorable man in the Seven Kingdoms, dealing with his second revolt. EDIT: He also lost baby Sansa to a still birth.
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I did NK mode with Stannis, but that was only because I was going broke and burning people is cool. Plus you are invulnerable to plots