Arsenal shocked Chelsea with a stunning 5-3 win at Stamford Bridge on Saturday, their eighth victory in nine matches, with the only defeat in that run coming at White Hart Lane - a fact Van der Vaart perhaps took into consideration when he issued a stark warning to the Gunners after helping Tottenham extend their own unbeaten run to seven matches with a 3-1 win over QPR.
The Dutchman, who has now scored in a club record-equalling five successive Premier League games, said: "We are better than Arsenal. In our last seven games we have won six and drawn once. It's a long season, but I think we have a bigger and better squad."
Van der Vaart is so confident about Spurs' strength in depth that he thinks the club could challenge the likes of Chelsea and even Manchester United for second and third place come the end of the season.
"Are we the best team in London? Maybe, but it's still early," Van der Vaart said. "We're in a good way. We are much better than we were last season.
"Man City is the best team in the league and below them you have a lot of good teams and we are one of them."
Despite being impressed with City's performances this year - they beat Tottenham 5-1 at White Hart Lane in August - van der Vaart does think the wheels could come off their title assault due to the big egos in the City dressing room.
"At the moment they are really good. They are winning games easily and how they played against Man United was impressive, but they also have the difficulty of a lot of egos so that could also be a problem," the 28-year-old said.
"When you play for a big team, when they buy a lot of good players and a lot of players also aren't happy.
"Look at (Emmanuel) Adebayor. He is a great player for us, but he was not even in the squad at City and was training with the youngsters."
Source: PA
Source: PA