San Francisco, Oakland and even Los Angeles area interests are ready and waiting with stadium possibilities for the 49ers if Measure J goes down in Santa Clara, which would be an upset given polls showing a majority of likely voters favor building a $937 million stadium on a parking lot adjacent to Great America theme park. San Francisco and Oakland officials in particular appear to be vying for the 49ers' attentions, both certain they offer the best locations and financial prospects for a new stadium even if Santa Clara voters approve the stadium measure. "If this doesn't pass," said former 49ers President Carmen Policy, who is consulting for the developer of a proposed commercial and residential project at San Francisco's Hunters Point that includes a stadium, "they have to look elsewhere. And we are the logical place for them to look." Advocates of luring the 49ers to Oakland, possibly in a two-team sharing arrangement with the Oakland Raiders, say San Francisco cannot match the East Bay's Advertisement transit-friendly location. Niners President Jed York has said in recent months that he would consider Oakland as an option if the Santa Clara project falls through, and Raiders CEO Amy Trask has told the Mercury News that her franchise could work with the 49ers as both teams try to replace two of the oldest stadiums in the league. "I really believe the Oakland-Alameda County Coliseum is the best location for a stadium for the Raiders and the 49ers," said Oakland City Councilman Ignacio de la Fuente, co-chair of the region's Coliseum Authority. York is quick to dismiss such speculation, insisting the team is focused entirely on winning the election in Santa Clara and moving forward with the planned 68,500-seat stadium that would open for the 2014 season. And if Measure J fails and the 49ers need to turn to Plan B? "There's nothing active," York said. "If the vote isn't successful in Santa Clara, we're going to do everything we can to build a new stadium in Northern California."