Would you rather have a long viva or a short one?
Would you rather know at the start exactly what your examiners thought of your thesis, or wait to discover it during the conversation of the viva?
Would you rather give a presentation at the start of your viva, or be asked a question by your examiners to start the process?
Would you rather have a guarantee that you won’t go blank at all, or a guarantee that your examiners will be nice?
Candidates might have preferences about all of these sorts of things, and more, but no way to simply get their preference. Wondering about whether preferences will be met is not unreasonable, but it is space in your mind that could be taken up with confidence, knowledge, expectations and more.
Would you rather focus on things that you could do something about for your viva, or questions that distract you?