The midfielder has broken into the England squad this season.
Osman said: "I would say this is probably the best Everton team in my time here.
"We've had some good teams over the years and some good seasons where we've finished high up in the league and got to cup finals.
"But, with the football we are playing and the games we are winning, I'd have to say this is the best team.
"We've got a bit of variety to our game. We pass but we are happy to go direct as well and mix the game up. That's difficult to defend against I suppose."