CE = Paladin of Slaughter, not Tyranny. Not like it matters, the class features are the same at that point.
One level of virtuoso is less powerful if you don't use the rest to progress sublime chord. Persuasive song is a nice ability, but perhaps doing warblade 1 then bard 1 and eventually taking song of the white raven is more powerful? Depends on your feat economy. I'm sure there are other random dips that can be considered there (cloistered cleric 1 for essentially 3 free feats, conjurer 1 for abrupt jaunt.)
The feat you get with at the mindbender level is mindsight obv.
edit: considering the amount of turn attempts that charisma rating gives, cleric with devotion feats is a pretty sexy dip if you have space.