What's your favourite hobby?
What's your favourite thing to have for breakfast?
What is your favourite sandwich?
What's your favourite city?
What's your favourite holiday destination?
What's your favourite film/movie?
What is your favourite vegetable?
What is your favourite fruit?
What is your favourite cuisine?
What is your favourite dessert?
What's your favourite TV series?
What's your favourite way to spend a sunny day?
What is your favourite type of weather?
What's your favourite animal?
What is your favourite App on your phone?
What's your favourite drink?
What was/is your favourite school subject?