(Undated)  --  A new WalletHub survey ranks Portland among the nation's "Best Cities for an Active Lifestyle."  The Rose City places 17th, while Seattle is ranked 22nd.  WalletHub's analysts compared the 100 most populated cities, based on key factors to identify those that help their residents stick to their health goals.  Scottsdale, Arizona ranks at the top in the survey, while Laredo, Texas ranks as the "worst" city for an active lifestyle.