“…When I started work on Drupal as a graduate student, Drupal was just a little hobby project grown out of my own interest in the web. As you can tell from the original release notes, being the only programmer certainly had its charms. 
Fast forward 8 years, and we’re a global project with hundreds of thousands of users, thousands of active contributors and a healthy ecosystem. Along the way, I’ve always tried to listen to the community, and to trust my own instincts and moral compass. We built an amazing community together, and because of that, working on Drupal continues to be a labor of love. Even after eight years…”
Dries Buytaert
Ok, it’s eight years old now, i am already late, just knowing drupal since Jan 2008. Well Dries, big thanks.
Popularity: 5% [?]
Off course Drupal 5. Why? here is my reason:
1. Drupal still maintain the Drupal 5 version
This is the main difference between other CMS. Wordpress for example if WP release their newer system then the older system is no longer supported, and people encouraged to move to newer system. However Drupal maintain the 5 and 6 version at paralel update. So right now you can download the latest Drupal 5.12 and Drupal 6.6 version. Both of 2 version were amazing.
2. Drupal 5 has more complete modules
Yes, there are still some of Drupal 5 modules that need to be re-programmed so it can be used for Drupal 6.
3. Drupal 5 has more case study
Since people already use it long before Drupal 6, then you can see a lot of case study and project that still use Drupal 5.
4. Drupal 5 is more simple and fast
I did not like a lot of AJAX programming in Drupal 6, I prefer what Drupal 5 simplicity concept. Its simple and strong.
Any more suggestions?
Popularity: 9% [?]
Why Drupal? Well for me it is simple CMS, I still used Drupal v5, and feel it was the best CMS –the latest is Drupal v6, have installed but still prefer older version. Most of people (developer I mean) prefer Drupal because Drupal has a strong application framework, robust and could be used for managing large project. However I choose Drupal because it’s simplicity. I know the design is not sophisticated but just see the functionality and time needed to develop that kind of website.
For more information about Drupal, you can read an introduction to Drupal tutorial there, and also debating between Drupal vs Wordpress comparison
Popularity: 5% [?]
If you using Drupal as your CMS you will find that Drupal having a simple problem about empty line for table. This is a common problem, often asked by people who works with Drupal. I dont know how to solve this since it is not a major problem, but more to wrong line break detection when recognizing HTML table
Here is the explanation, if you create the table then you will be using
<TABLE>
<TR><TD>ABC</TD><TD>DEF</TD></TR>
<TR><TD>123</TD><TD>456</TD></TR>
<TR><TD>789</TD><TD>012</TD></TR>
</TABLE>
This HTML code will made a three empty line before the table itself, so the table will be located at the bottom of the page. And if you made more line at the table, e.g 20 line, then the table will be located in very bottom of the page.
The solution, instead writing on several line like above, try to write HTML table as single line. e.g
<TABLE><TR><TD>ABC</TD><TD>DEF</TD></TR><TR><TD>123</TD><TD>456</TD></TR><TR><TD>789</TD><TD>012</TD></TR></TABLE>
And there is no empty line again, and the table will be located on correct place.
Is there any solution for this, you can see more about this discussion on Drupal Forum
Popularity: 16% [?]