Rent hikes. A stale array of Manhattan apartment listings. That’s the rental market scene NYC-apartment-hunters stretching from Harlem to FiDi have been testifying to. The continuing drag in the new-development pipeline (a repercussion of the 2008 stock market crash) coupled with some of the lowest vacancy rates the city has ever seen have dispersed most incentives for landlords to keep rents low. But although rent is up across the board, where in the city is the priciest? The two neighborhoods that take the cake are among Manhattan’s most popular -- the gilded Bohemian paradise that is SoHo, and chic, strutting Tribeca, where trends are born.