The best website today is powered by the WordPress, one of the best and very easy to use content management system that allow you to make changes your website without using any special coding language, it simply needs basic common sense towards the website.
If you are planning to get a new website online than you should not wait or surf around there is better solution that you can find below,
These are one of the most efficient and usable open source into the market although they are free, this is its one of the strength and more resources are available because of that.
According to your requirement you can choose one of the platform from above and that surely meet your requirement if you are looking for some entry level or business website that you can survive easily. But yes when you are looking or requiring the hardcore development than yes you need to have the custom development either on the php or asp.net.
Considering that we are requiring entry level website or ecommerce site or some blog or forum development than what should be the right choice for right requirement.
Now Here we can see the actual tabular comparison for these 4 Open Sources CMS
|140 Mill Downloads||63 Mill Downloads||15 Mill Downloads||4 Mill Downloads|
|WordPress Forum||Joomla Forum||Drupal Forum||Magento Forum|
|4K+ Free Themes||1K+ Free Themes||2K+ Free Themes||1K+ Free Themes|
|45K+ Free Plugins||7K+ Free Plugins||34K+ Free Plugins||1K+ Free Plugins|
|Top Site :
Forbes, CNN SONY
|Harvard University, Linux The HILL||WB, White House||Rite Aid, Warby Parker, olympus|
|5 Mins Setup||10 Mins Setup||10 Mins Setup||10 Mins Setup|
|Small & Medium Website / Corporate Websistes||eCommerce / Community Portal and Social Network Sites||Suitable for everything||eCommerce|
Addition to WordPress platform there are few plugins and premium themes that ads the valudation of ecommerce into the WordPress. There is WooCommerce for eCommerce, JS Composer for Writing, BBPress for Forums, and many plugins that are available into the market are the ones that helps to be the most favorite Open Source among the others.