In his previous life as a management consultant, Alexander Mirza spent many a night in hotels—some definitely better than others. “You suffer through all the indignities and you figure out which are the good ones,” he says. Now as a senior vice-president of corporate development for Beverly Hills, Calif.—based Hilton Hotels Corp., Mirza, 37, has the task of ensuring the chain’s hotels are worthy of being on top of any road-warrior executive’s list of places to stay.