Click through to find a larger image. Also, see the original list here. I’ve read 21 of the top 100, without ever considering myself a hardcore scifi/fantasy fan. How about you?
Titles I’d add, personally: Alas, Babylon; The Hunger Games; Harry Potter. But then, the latter two of these recommendations are children’s/YA, and this seems like a determinedly adult list.
It is worth looking at images of London’s violent weekend and asking how they make you feel. Far from fitting into any historical model, they seem to me to come from an imagined London, a horror scenario of the city as a blazing wilderness. Sci-fi nightmares of urban catastrophe resonate with these pictures because this is a city made strange. Whatever is going on here, it is not familiar, and will not be easy to put right.