Mania or Dementia?

[Archmage Joda]

For all those who have/have played the Shivering Isles expansion for Oblivion, there comes a part where you become the duke/duchess of one of the two halves of the Isles. Which do you prefer, Dementia, with the Dark Seducer guards and darker landscape and tree monsters, or Mania, with it's stoner duke and drug bugs and bright colors?