Shattered World is less Total War. It starts out highly aggressive, with different groups tearing into eachother, but settles into regular play about 50 years in. This means you still need to develop those Cassus Bellis, but the world looks different than usual. It also takes the HRE and the Byzantine Empire and France right out of the running, which makes things interesting, if not entirely historical.
I don't entirely follow the score game idea. CKII is open-ended. It's almost (but not quite) a sandbox. The score system it's using is no more a measure of "winning" than the score system in Sid Meier's Pirates. In fact, it's less so. The Ireland game my girlfriend and I play has me piling up a slightly higher score, but not actually being a clear "victor" based on the goals we've set out for ourselves (which is to become, and remain, the ruling family of Ireland). The victory conditions, if they are those, are more well-hidden than ever. This is actually an improvement on previous Paradox titles, I think, where they'd constantly keep track of the "Top 5", who were really just the historical superpowers of the era, and tell you how much better they were doing than you.
I don't understand the point you're getting at, though Neonivek. Is your reference to the score system a criticism? If so, why?
Any exploits you're using to top the high score chart are probably not universally possible, either. I've smashed half the continent in a single generation and not made more than about 15000 points.