The Croatian began life at Goodison Park with a bang, scoring 11 goals in 16 games, but his goalscoring form has tapered off slightly this campaign with just six from 17 outings.
Nevertheless, midfielder Gibson feels he has as good a predatory instinct as ex-Red Devils van Nistelrooy and Owen when at his peak and will soon bounce back from a barren run.
"He's a bit like Michael Owen or Van Nistelrooy in the box," said Gibson.
"He's first class and I don't think there's many better than him in the Premier League at the moment.
"The vein of form he had when he first came was special and from a football point of view I think we knew he couldn't keep it up constantly.
"Every striker goes through a lean spell but it hasn't taken him too long to score again.
"He's definitely up there with the best goal scorers I've played with to be honest. His finishing is unbelievable."