I don't like that ice-cream. I don't like this one either. OK.
Ram is cleverer than any other boy in the class. OK.
Ram is more clever than any other boy in the class. OK.
John is the best of all other boys in the class. (Impossible. John is not one of the group of other boys in the class. There is John, and then there are all other boys, which does not include John. To say that John is the best of something, John must be included in that group.)
John is the best of all the boys in the class. OK. (because John is one of all the boys in the class.)
every, everyone, everybody, everything, everywhere,
some, someone, somebody, something, somewhere,
no, no one, nobody, nothing, nowhere,
any, anyone, anybody, anything, anywhere,
each, each one, each one, each one OR each thing, each place,