[quote=@Rune_Alchemist]
was thinking about starting a new campaign on Crusader Kings 2.

....I haven't conquered the world in quite some time.
[/quote]

Have you played the Game of Thrones mod? Even if you're not crazy about the series it adds a lot of features that make it superior to the base game in my opinion.

I prefer Europa Universalis III for a Paradox title though.