Its really hard to tell, which song is the best, because every of them has something awsome.
In school, the marks do not depends on the quality of the student. I think its same here... Popularity of Year of the Rat on iTunes doesnt mean its the best song. I personally hate this song for its triviality.
Im deciding between Magical Fix, Vulture and Illuminations.
I like Marinagela, although Vibeke is Vibeke. But the songs.... if THIS is what a great band like Tristania has made in 3 years (!) i think old Tristania is dead.