The criteria set out by the Guardian is rather simple: the players chosen have to play the vast majority of their rugby in the United Kingdom – but who comes out on top?
You can check out their top 30 players here.
Below, we run down their top five rugby players in Britain and Ireland.
#5. Courtney Lawes (England)
They wrote: “Arguably playing the best rugby of his career after a prominent role with the British and Irish Lions against South Africa and still incredibly physical.”