I've always had the ones with the dash, since they are what's mentioned in the official docs ( https://developers.google.com/analytics/devguides/collection... ):

    0.0.0.0 google-analytics.com
    0.0.0.0 www.google-analytics.com
    0.0.0.0 ssl.google-analytics.com

I'm not sure what googleanalytics.com is for, however; but I'll add it to my HOSTS, in any case.