Emma is ... girl in our class. (beautiful)
the most beautiful
Harry Potter is ... book of all. (interesting)
the most interesting
Pizza is ... than hot dogs. (delicious)
more delicious
Going to the cinema is ... than watching TV. (exciting)
more exciting
Surfing is ... than swimming, (difficult)
more difficult
Monday was ... day of all the week. (boring)
the most boring
Football is ... sport in my country. (popular)
the most popular
Sharks are ... than dolphins. (dangerous)
more dangerous
Your example: reading books - playing video games
...
What's the most delicious food for you?
...
What's the most difficult lesson for you?
...
What's the most interesting lesson for you?
...
Your example: sushi - pizza
...
What's the most boring lesson for you?
...
