With millions of pounds spent from some of the biggest clubs in the division over the summer, many would have expected a marquee signing to have been the best new arrival in England's top flight, but Austin's form has earned him the accolade.
The striker, who previously spent the entirety of his career in the lower divisions, has adapted to Premier League football with consummate ease following the R's promotion from the Championship and already has 12 goals in his first 17 appearances at the top level.
It is a remarkable scoring record for someone so inexperienced and Neville and Carragher paid tribute to the front man for his form.
"You talk about the impact on teams, well, the goals he’s [Austin's] scored have been fantastic," Neville said to Sky Sports. "He’s a great finisher and to score the goals he’s scored for a team that have been down near the bottom is a great achievement.
"He’s been outstanding and there’s talk of international recognition," Carragher agreed. "They are just above the bottom three and that’s down to him and if they stay up he’ll be a major part of that."
QPR have been reliant on Austin's goals to move them away from the drop zone and Harry Redknapp is known to be targeting a striking addition in January to take some of the goalscoring burden off the former Swindon Town man.
The R's have managed to score 21 times in total this season, meaning Austin has notched more than half their goals and it highlights his importance to the team.
He has already been linked with some of England's most reputed sides, but Redknapp has spoken of his desire to keep hold of Austin and the London side will be hoping that he can repeat this sort of scoring form in 2015.