Davies played every minute of the three Test matches against the All Blacks, including the memorable 24-21 win in Wellington which took the series to a decider.
And he has proved his supremacy at Eden Park on Saturday, where England fly-half Owen Farrell landed a late penalty to secure a 15-15 draw to tie the series.
New Zealand stormed out of the blocks in the first half on Saturday and could have scored three early tries.
But they struggled to take advantage of possession and territory – while the never-say-die attitude of the Lions unnerved them.
And Farrell – who helped England to a second consecutive Six Nations Championship earlier this year – kept his bottle to land a 78th-minute penalty to tie the game, leaving a proud Davies delighted they managed to prove so many wrongs.
The All Blacks won the first game 30-15 at Eden Park while the Lions won the second 24-21 in Wellington.
Davies is the third successive Welsh player to be voted the Lions’ player of the series, following full-back Leigh Halfpenny against Australia in 2013 and centre Jamie Roberts in South Africa four years earlier.
Tour captain Sam Warburton distributed voting cards after the final Test on Saturday and every member of the squad voted for the Standard Life Investments Lions’ Lion of the Tour.
Davies, aged 29, has now played in all of the last six Lions Tests.
Source: 6 Nations Rugby