On Saturday in Cardiff, Carter scored two tries and kicked five conversions and two penalties to amass 26 points as the All Blacks routed Wales 41-3.
"There is no-one better than Daniel Carter," McCormick told The Press. "Let's be honest, he is a superstar - he does everything. He is just a natural footballer, he has got the X-factor.
"There is never too much hoo-ha with him. You can see he does things right, whether he plays at first-five, second-five or full-back. He gets on with it.
"You get a lot of these 'mirror boys' but he is not one of them. He is just Daniel Carter from Southbridge."
Saturday's match was Carter's first Test back since fracturing his leg during a Tri-Nations match against Australia in August yet he showed little signs of rustiness as he ran in for his two tries and fed his back line superbly with Rico Gear, who bagged a hat-trick of tries, the eventual benefactor.
The 26 points means Carter has notched up 341 points in 23 Tests and provided the 23-year-old remains injury free he is on target to eclipse the records held by former All Blacks fly-halves Andrew Mehrtens and Grant Fox.
Mehrtens, the All Blacks' leading point-scorer, amassed 967 points from 70 Tests and Fox collected 645 from 46.