I would have to say my most favourite safety demo in the whole world is the one done by Thai Airways. (TG did this video in 2007 and is still showing it onboard today. You will notice that QF has copied some bits of it...like the soothing background music, use of Captain's message). I love thier demo because it is soothing and sensual and relaxing to watch. Well done TG!!!!!!!!!
YouTube - Full-screen Thai Airways safety demonstration video
Forgot to mention...TG don't do a live demo either...it is all onscreen.