Google Pages get fast adsense approval in comparison to others. Google Pages provide free 100mb storage plus templates to quickly design your site.Its even better than yahoo Geosites as it does not have annoying ads alredy runing on your site.So if you are planning to make a site on sudomain go for googlepages subdomain. pages.google.com/
Just to give you an example of what Google Pages can do. Blog Announce http://blog.announce.googlepages.com Enjoy!