Three of the Democratic mayoral candidates joined leaders of the Hell’s Kitchen/Hudson Yards Alliance yesterday to celebrate the decision Monday of the state’s Public Authorities Control Board to reject the proposed West Side stadium.

“Sanity has prevailed, and that’s a nice thing,” the City Council speaker, Gifford Miller, said. “We had a mayor who made his top priority a football stadium on the West Side instead of the development of Lower Manhattan.”

Another Democratic candidate, Rep. Anthony Weiner of Queens, said the defeat of the proposal for a Jets stadium should not lead to the withdrawal of the city’s bid for the 2012 Olympics.

“Don’t throw in the towel on the Olympics,” Mr. Weiner said. “We should pivot immediately to the consensus stadium site and build in Queens.”

The Manhattan borough president, C. Virginia Fields, attended the alliance event and later in the day held a press conference, in which she spoke of her vision to rezone the rail yards for “affordable housing,” retail development, and open space.

Mr. Bloomberg’s “single-mindedness delayed development on the West Side by at least three years,” she said.

The fourth Democratic candidate, Fernando Ferrer, was said to be unable to attend yesterday’s West Side event because of a prior commitment, but his campaign released a statement supporting it.

“Mike Bloomberg has spent a large portion of his time as mayor working with Governor Pataki and President Bush to get his billionaire friend a sweetheart stadium deal,” Mr. Ferrer said. “I applaud all of the folks, especially Speaker Silver, who came together to show that New Yorkers have different priorities.”