The pair have changed clubs this year.
Bjekovic told Tuttosport: “Vlahovic is better and more complete than Haaland.
“The Norwegian has devastating power, but Dusan is not inferior: there is also very little difference in their height.
“But the Juventus forward's variety and styles of player is better. Manchester City and Juventus paid more or less then same fee, including commissions, to sign the two this year from Borussia Dortmund and Fiorentina."