The young Prince, third-in-line to the throne and son of Prince William and the Duchess of Cambridge, won 23% of the vote.
Following the royal tour in Australia and New Zealand earlier in 2014, Prince George proved he was a trendsetter with many of his outfits selling out within minutes.
Blue Ivy come in second, in front of Kim Kardashian and Kanye West's little girl North West.
"All of the toddlers in our shortlist have extremely influential parents, so it is no wonder that their children have become fashion icons", said My1stYears.com.
"It is no surprise that George made it to the top spot because he’s so loved by the public. As soon as the he wears something, that item has a huge surge in sales. Here at My1stYears.com we experienced this George effect first hand when the young Prince was photographed wearing a personalised jumper. Coincidently we had a surge in sales for a similar product and sold out", the company added.
Alesha Dixon's daughter Azura came fourth, and Harper Beckham entered the top five with 9% of the vote.
North West and Harper Beckham
Marvin and Rochelle Humes’ daughter Alaia-Mai came in sixth, with Kate Winslet’s son Bear Blaze in seventh, while Prince George's cousin, Mia Tindall, daughter of rugby star Mike Tindall and Zara Phillips, came eighth on the list.
Rounding off the list were Eric Cowell in ninth, and Klay Rooney in tenth.
The sailboat smock dungarees that the youngster wore for a playdate in New Zealand from London-based retailer Rachel Riley sold out of all sizes within just a few hours, and demand was also high for the Rachel Riley striped polo shirt and navy shorts he wore to visit the zoo.
A sailboat romper by Annafie also sold out, and The Early Days shoe company in Leicester was so overwhelmed with demand after the Prince was spotted in a pair of its 'prewalkers' that online sales had to be shut down. The cuddly kangaroo backpack that George debuted on his arrival in Sydney also sold out.