I think www vs. non-www is a matter of personal preference. More important is that you stick with one and use that sitewide. Don't forget to 301 the other one

I think www vs. non-www is a matter of personal preference. More important is that you stick with one and use that sitewide. Don't forget to 301 the other one to your preferred one. People are so used to typing www before a domain name, so I stick with that and force www with a redirect.