Here's the correction for the first part:
I think playing football is more fun than watching it.
Do you think burgers are better than pizza?
And for the completion with "such... that" or "so... that":
Jessica is such a brilliant woman that everyone admires her.
The new student is so shy that she would only talk to the teachers.
My new suede shoes are so expensive that I'm afraid to wear them.
My cousin Ricky is such a clever boy that he can learn multiple languages at the same time.
I was so tired that I didn't go to my boxing class.
