#3. George Ford (England)
Ford vs Johnny Sexton is a mouthwatering battle in prospect as the pair get set to go head-to-head at fly half this weekend.
The Ireland number 10 has two Lions tours under his belt and would be an experienced option to lead the side again this year.
But Ford, 28, is arguably the form fly half of all the home nations and has a prime opportunity to upstage his direct rival at the Aviva Stadium on Saturday.
The Oldham-born Leicester Tigers star was unlucky to miss out on the 2017 tour and the pressure is on him to perform but, should he handle this intriguing subplot well, he has every chance of getting that elusive first Lions call later this year.