Dollhouse:
Sweet Dreams by valamd (youtube)
(Ensemble) Creepy and awesome.
Doctor Who / Torchwood:
Spaceman by
kaydeefalls(Ensemble) Some fantastic visual parallels used in this. Jack and the Doctor are the points that everyone revolves around. Or maybe they're the catalysts.
Star Trek (2009):
Meant to Live by
rae1013Kirk/Spock(/destiny!)