1) Hand out the pieces of paper.
2) Tell the students that you are going to ask some questions, and to write down their answer to each question on a separate piece of paper.
3) Have somewhere the students can place each paper as they complete it. Alternatively, have students number each paper, so that later it is easy to tell which question it answers.
4) Ask each question. The students should write down their OWN PERSONAL answer.
Who is the best footballer?
What's the most interesting school subject?
Who is the most beautiful woman?
Who is the best singer?
What's the funniest TV programme?
Who is the fastest motorcyclist/F1 driver?
What's the most difficult school subject?
What's the nicest food?
What's the best book?
What are the coolest clothes?
What's the most dangerous animal?
There are plenty of alternative questions but these are some the ones I posed because we had been looking at these particular adjectives. With higher level groups you could use a wider variety of adjectives.
5) Everybody should now have answered all the questions. Collect in the anonymous answers. Younger students often like to fold up their papers, like in a secret ballot.
6) Announce each "nominee" and elicit the category. For example, "Maths, Science, English, History. The category is ..." (most difficult subject) and then announce the "winner". (The winner is the answer repeated the most times. If all the answers are different, or there is a draw you could have another vote.) My class wanted to take it in turns to come out to the front and read out the nominees. I would then say, in a grand voice, Oscars style "And the winner is..."