After a summer of abstinence, Arsenal manager Arsene Wenger finally opened his cheque book on transfer deadline day to sign Germany midfielder Ozil for ?42.5million from Real Madrid.
Although Spurs have lost Gareth Bale to the Spanish giants, they have reinvested the money quickly, signing seven international players at a cost of over ?100million.
Roberto Soldado has made an immediate impact, scoring four goals in four, while there is huge excitement among the club's fans about the potential of 21-year-old Erik Lamela and former Ajax midfielder Christian Eriksen, who cost ?11.5million.
The spending from Spurs and Manchester City significantly outweighed that of their rivals and Villas-Boas thinks that means he is in a stronger position than those around him, including Arsenal boss Wenger.
"All of us have done good business in the transfer window, but Manchester City and us maybe a little bit more than Manchester United, Chelsea, Arsenal and Liverpool," the Tottenham manager said.
"We are happy with what we have done in the transfer window, extremely happy.
"Arsenal did a great last-minute coup with Ozil but they will be as competitive as they were before."
Although Villas-Boas is a fan of Ozil's ability, he admits the Gunners paid a big price for a player who usually operates in a position where Arsenal are strong in numbers.
"He is a wonderful, gifted footballer and in the end Arsenal paid heavily for a player of that dimension," Villas-Boas said.
Source: PA
Source: PA