Halfpenny landed 40 of his 45 kicks on the Lions tour and in the deciding clash in Sydney alone he broke the record for the most points scored by a Lion in a single Test (21) and the most points (49) by a Lion in any Test series.
He also set up two of the Lions' tries in Sydney, first feeding Jonny Sexton for the second score before bursting through the Wallabies' line to put George North clear.
And all that came after he finished the RBS 6 Nations as the top-points scorer and Player of the Championship.
His nomination for the prestigious end of year award came just a few days after he was named on the shortlist for the IRB World Player of the Year award while on Monday he scooped the BBC Wales Sports Personality of the Year award.
Jonny Wilkinson is the only rugby player to ever land the BBC Sports Personality Award, winning the gong in 2003, ahead of his World Cup winning captain Martin Johnson.
In 1971, Welsh fly-half Barry John finished third after playing a starring role in helping the Lions to what remains their only series victory over New Zealand while three years later, Willie John McBride also came third after captaining the Invincibles in South Africa.