Trying to be somewhat objective, I still fall for the Matari one. The music being tribal helps a lot, the whole thing balancing revenge and liberation in such even measure, the feel of 'When the tribes for once align in one direction, we're unstoppable' and so on.
The others got slightly boring due to the music choices, honestly.
In order of preference:
1.Matari
2.Amarr
3.Caldari
4.Gallente (it wasn't very good at all, I felt)