DxO still lists the 55mm FE Zeiss as the best autofocus lens on the market. And if you want to save $223 on it than you may consider to purchase it as Grey Imported but with full 3 year US seller warranty at [shoplink 37031 ebay]GetDigital on eBay (Click here)[/shoplink].
P.S.: I am curious to see if the new Batis 85mm lens will match or even surpass the 55mm FE performance.