You list two things, the next person picks the thing they would rather do/have and do the same.

Would you rather get up early or sleep late?

I would rather sleep late because I probably can't get up early! :p

Would you rather brush your teeth before having breakfast or the other way round?

I would rather brush my teeth before having breakfast.

Would you rather go on a road trip or take a plane?

road trip! im deathly afraid of takeoffs and landings

would you rather sleep with anyone of your choice, and have no one know about it, or not sleep with them having the world think you did?

second option because fame

would you rather be in a room with 1000 spiders or 30 snakes

1000 spiders.

Would you rather have a MacBook or a Windows laptop?

windows

would you rather own a working lightsaber or the One ring?

lightsaber all the way

would you rather lose an arm or a leg?

leg as you use your arms a lot more IMO

would you rather smell like farts or like urine for the rest of your life?