Wordpress is a blogging plataform and not a CMS , but you can easily convert your Wordpress Blog into a CMS simply using a plugin (ie Role Manager) and for SEO purposes the All in one SEO-plugin. After this you will have the best of both worlds: the best CMS for SEO.
Wordpress is good but Drupal is powerfully than wordpress in futures ( I think ) Can you example several site that created by wordpress ? for example these site create by drupal CMS : http://dev.aol.com http://research.yahoo.com http://premier.be http://invest.belgium.be http://ostatic.com http://donna.be http://www.fastcompany.com http://stubru.be http://www.flipkowlier.be http://popsci.com http://www.mikebloomberg.com http://rockband.com http://extensions.services.openoffice.org http://amnesty.org http://www.novell.com/communities http://www.macworldexpo.com http://www.intlr.net http://fosdem.org/2008 http://www.avrillavigne.com http://www.eff.org http://harvardscience.harvard.edu http://jenniferlopez.com http://www.sonybmg.com http://upei.ca http://endpoverty2015.org http://www.lifetimetv.com http://exposure.cbc.ca http://www.warnerbrosrecords.com http://wbr.com http://www.foxmovies.com http://toriamos.com http://live.eclipse.org http://discoveryclub.de http://theonion.com http://defilharmonie.be http://9lives.be http://dead.net http://community.menshealth.de http://www.gfmd-fmmd.org http://www.ozzy.com http://uni.zeit.de http://stubru.be http://www.greenpeace.org.uk http://opensource.org http://www.cdenv.be http://playboy.de http://blog.debatte.welt.de http://ubuntu.com/ http://www.laatwatzien.be http://adsoftheworld.com http://www.votehillary.org/CMS http://musicbox.sonybmg.com http://nowpublic.com http://asia.playstation.com http://askaninja.com http://lindenlab.com http://teen.secondlife.com http://theworld.org http://www.bbc.co.uk http://www.pri.org http://www.wgbh.org http://fighthunger.org http://indymedia.be http://moby.com http://www.mtv.co.uk http://www.nato.int/issues/pfp http://appel.nasa.gov http://16plus.be http://nowpublic.com http://labs.divx.com www.maths.ox.ac.uk http://community.enemyterritory.com Please get me a sample list of sites that created by wordpress .
Hey alimosavi For a list of "Big Boys" using Wordpress just visit wordpress.org/showcase/ the list is too long for publish here. Anyway comparing Drupal and Wordpress based on Internet Impact, then just let see what GOOGLE says: wordpress: 295 000 000 results drupal: 31 400 000 results powered by wordpress: 56 000 000 results powered by drupal: 9 800 000 results As you can see Wordpress is more popular than Drupal , anyway I can say that Drupal is the best CMS in security, maybe in the future it could become in a serious Wordpress competitor, but today: WORDPRESS is the Best.
Subdreamer is a very powerfuil CMS platform, but is not free , basic Subdreamer costs is $50. Is very good for seo and very customisable. I really love this CMS.
Hands down to wordpress, nothing beats it. I like it a lot for its possibilities to turn it up for any purposes.
Drupal has more flexibility than wordpress though. I also love the blocks function it's the easiest way to position stuff.