Kane, who scored a hat-trick in the match on Tuesday also registered a record 39 EPL goals in a calendar year, eclipsing Alan Shearer's record from 1995.
"Harry is world-class," the Argentine was quoted as saying by The Guardian on Tuesday.
"Of course, Messi and Cristiano are different. Today -- one striker in the world, a specific position -- who is better than Harry? It's difficult to say he's the best but he's shown to everyone he's one of the best.
"Both of his records are massive -- to break the Premier League record set by Alan Shearer and then, if you see that over the last seven, eight or nine years, it's always Messi and Cristiano and now, it's Harry as well," Pochettino added.