'The Menace' finds it difficult to pick a favourite but has a few names in mind.
"It's not like when I was playing when you could really pick a winner but it'll be one of the favourites. You can't discard Michael van Gerwen or Michael Smith. Dave Chisnall also comes into the discussion now too after winning the Belgian Open," said Priestley to BoyleSports Darts Betting.
"I think Peter Wright will probably win it because it's one on his CV that he is yet to win."
Draw confirmed for 2022 World Grand Prix: Van Gerwen-Anderson, Clayton-Van Duijvenbode and Smith-Aspinall among first round ties
But one player he is ruling out is another Scot in Gary Anderson who faces Van Gerwen in the opening round.
"I could rule Gary Anderson out of winning it I'm afraid. I think he's at the end of his tether with darts.
What does Priestley think is the most attractive first-round tie? "There are quite a few tasty games here. We're looking at Dimitri van den Bergh against Dave Chisnall - it's not a bad game, that," he continued.
"Joe Cullen against Damon Heta, who is very steady and a very good player. That will be a cracking game. Rob Cross v Daryl Gurney will be a cracker. There are some beauties."