A Hamptons estate

While the data doesn't include closed sales, it clearly shows which brokers are attracting the biggest listings. At the front of the pack is Harald Grant of Sotheby's International Realty, who had 26 listings with a combined asking value of nearly $652 million. The No. 2 broker, Susan Breitenbach of the Corcoran Group, had listings worth a total of $606 million.

Those two, along with all Hamptons brokers, are feeling the market boost. In the second quarter, the median sales price in the East End dropped a bit, from $720,000 to $710,000, but that still surpassed the first-quarter median sales prices for the past five years. (In 2007, its previous peak, it was $690,000, according to Suffolk Research.) In general, "the trend is up, and we expect it to continue," said George Simpson, the president of Suffolk Research Service. That is, unless there is a "W-shaped recovery," meaning a double dip into another recession before a sustained rebound.

For a guide to those with the most expensive listings, however, see below for our who's who. 

2. Susan Breitenbach

A broker frequently in the Hamptons spotlight, Susan Breitenbach, a senior vice president at Corcoran, took the No. 2 spot on The Real Deal's ranking with a stunning 33 listings worth a total of nearly $607 million. Breitenbach is sharing the $68 million listing for Three Ponds Farm -- which features an 18-hole golf course, a grass tennis court, a 75-foot pool and three stocked fishing ponds on more than 60 acres -- with Grant, above. Breitenbach also has the $34 million listing in Bridgehampton for a 26-acre parcel at 94 Highland Terrace that can be purchased in its entirety or broken into several $6 million lots.

Breitenbach keeps it all in the family. Her son, Matthew, a Corcoran vice president, is part of her sales team, and husband Stephen is a popular custom East End homebuilder. She told The Real Deal that she's marketing all of well-known builder Jeffrey Collé's estates, with one listed at $40 million and another at $35 million -- but some of those listings are being shared with other brokers.

Of the current market, Breitenbach said, "I never worked so hard in my life." But she also attributes her success to the technological savvy, creativity and energy of 27-year-old Matthew, who set up the team website and handles videos and other high-tech advertising.