NO-www vs YES-www

For some time I was wondering why some sites where you access without a WWW redirects you to the one with WWW subdomain.

know most of us will agree that accessing with or without the WWW
subdomain should be supported. But in addition to this, I find the
arguments of the no-www side more appealing to me. Of course don't just
take my word and see what you think would fit you. NO-WWWW and YES-WWW and also search the net (google, live search, yahoo) for more info

So that would make my preferred URL for my site become (dropping the www but if you still really want to use www, feel free to do so and you'll still access my site)