Real estate experts have concluded that in some regions of the U.S. housing market, sellers are at an advantage, meaning that homeowners are able to swiftly unload their homes close to asking prices. Across the nation, houses sold after an average of 44 days on the market in 2012 from 57 days in 2011. The Wall Street Journal’s Market Watch zeroes in on the top 5 sellers’ markets based on the correlation between list and closing prices, according to Zip Realty’s data for 32 of the nation’s primary housing markets. Not surprisingly, all 5 are located in the West.