Best lines of the whole series

Just finished watching Torchwood: Miracle Day and the best lines of the entire series were in the very last few minutes of the last episode:

Gwen: How. Much. Bloody. Lipstick. Can. You. Wear. (as she beats up Sally Kitzinger)

but the best was saved for last:
Rex: *gasp*
Gwen: What?
Jack: What?
Rhys: What?
Gwen: What the Hell?