To compile our first annual survey of America???s Best & Worst Cities for Women, we joined forces with Men???s Health to analyze how 100 U.S. metropolises stack up when it comes to health, fitness, and quality of life. (Check out this month???s issue of Men???s Health to find out whether your city is guy-friendly, too.) Our number-crunching team tallied 38 factors, including cancer rates, commute