I was by there on Monday. It looks like we have flying angels this year.
Oxford Street still looks like a wasteland of white balls.
Jermyn Street has a very interesting display - don't know what it will do at night, just saw it in the (dark because of rain daytime) but if I were going at night I would be sure to go from east to west - not west to east. It looks much more impressive going to the west.
New Bond Street looks interesting and different.
I only caught a glimpse of South Molton Street from the top of a suddenly faster bus on Oxford Street (who'd have thought) and I don't know what that display is but it would be well worth checking. Just watch out for illuminated rickshaws (no insurance).