Jane, мне кажется, что against тут совершенно ни к чему.
Uly, not that I want to argue with you, but "the cruelest",really? sounds very unnatural to me. I'd go for "the most cruel".

And "the most cruel" sounds unnatural to me)

http://context.reverso.net/перевод/английский-русский/the+cruelest

we usually use THE MOST CRUEL when there's another adjective after it: The most cruel and unusual torture imaginable. The most cruel and heartless killers.

http://context.reverso.net/перевод/английский-русский/the+most+cruel

thank you die the explanation, and for the samples, Uly. much appreciated

Always a pleasure.