Since the dawn of time, mankind has struggled with one question above all others – who is the best celebrity David? And now, on the Davidest day in the calendar – St David's Day – RadioTimes.com aims to answer it.

Of course, even we couldn't hope to achieve such an intellectually and philosophically demanding feat alone – we need your help. Only the hive mind of the internet is powerful enough to decide such a question. So vote now for your favourite David and together we will make history...

Happy St David's Day!