London's rivals to host the 2012 Olympics have welcomed the IOC evaluation report into the five bids.
Paris' bid team said it was "more determined than ever" to host the Games following its glowing report.
New York bid leader Dan Doctoroff said he was "absolutely delighted", despite the assessment expressing concern over plans for the main stadium.
Moscow's bid was the only one to be openly criticised but a representative saw it as a "positive evaluation".
The evaluation report, released on Monday, did not directly rank the five bids, although it did express reservations about the New York, Madrid and Moscow bids.
Paris, which did not receive a single negative comment, remains favourite to win the 6 July vote.
Paris mayor Bertrand Delanoe said the city's bid team would continue to push for victory.
"Don't expect us to be self-satisfied. Now we have some work to do," Delanoe said.
And the Paris bid's assistant general manager, Essar Gabriel, denied that an event held on the Champs-Elysees on Sunday was triumphalist.
"The idea was to put forward what the 28 sports were about, of the Olympic programme," he told BBC Radio Five Live, "and it was clearly an expression of our love of the games, our love of sports in general."
Madrid mayor Alberto Ruiz-Gallardon believes the Spanish capital is now in pole position to win the vote.
The report praised Madrid's bid to host a "humanist, sustainable and environmentally friendly Games", while expressing concern about the lack of hotel rooms close to the venues.
"We are totally convinced that today we are top-ranked of all the cities bidding for the Games," said Ruiz-Gallardon.
"Our only regret is that the commission didn't give points rankings to each city as they did last time as we believe we would have come top.
"The report reflects the reality that with all respect to the other competing cities the Madrid project is the best and has the highest levels of popular and institutional support of any of the cities."
According to an independent IOC poll, Madrid has a public approval rating of 91% among its citizens - better than the other four cities.
New York, which has won the support of only 59% of its inhabitants, is yet to get approval to build a 75,000-capacity stadium on Manhattan's West Side.
The report warned: "The Olympic Stadium...(was) still in progress at the time of the commission's visit and no guarantees were provided that (it) would be available for the construction of Olympic infrastructure."
However, Doctoroff, New York's deputy mayor and bid leader, said: "This really couldn't be any better.
"We're absolutely delighted by this report with just great reviews in every single category."
Moscow, considered the outsider of the five bids, was criticised for "a lack of detailed planning in the candidature file", making it "difficult for the commission to evaluate the project".
But the head of Moscow's 2012 Olympic bid Valery Shantsev welcomed the report.
"The members of the evaluation commission stressed that all the five cities in the race presented serious and strong bids," said Shantsev, who is also Moscow's deputy mayor.
"They said there were no outsiders in the race and their report proved it once again.
"We were expecting such an evaluation and we're glad to receive it."