really hard position to pick for... in terms of line-out Kruis is the best in europe IMO so when available very difficult to not pick him, also makes an awesome combo with itoje who can play 6 as well if needed. Then you have AWJ who Gatland loves and considers a leader and recent form aside was always going to pick him as he knows him so well... so you are left with one spot and for me 3 contenders Lawes, Launchbury, Gray who i think are similar in many ways... I would take Lawes based on his nasty edge which makes him a stand out of those 3 ... Gray tailed off in the 6N, Launchbury just very unlucky... probably more ot do with personality than rugby playing ability... having said that dont be surprised if he takes Jake Ball or Charteris... had good tournaments although their club sides have been dire and Charteris is still lacking game time, being Welsh is their main attribute