The final season of “The Hills” got a off to a strong start for MTV Wednesday night.More than 2.7 million viewers — mostly women in the 12-34 demo — caught the latest escapades from married couple Heidi Montag and Spencer Pratt, as well as other reality personalities. That was up from the 2.4 million the skein drew for the premiere of the second half of season five in September. Once a ratings powerhouse, the show have been dwindling in recent seasons and the cabler decided this newest set of episodes would be the last go-around. Taking over the reality zeitgeist at MTV is “Jersey Shore,” currently shooting season two in Miami. Following “The Hills,” season two preem of spinoff “The City” earned its highest rating ever in the demo.