Servlets.com: Java IDE Popularity
I have no idea how accurate this poll is or how it was conducted, the results are still interesting. According to the results, Eclipse is the most popular Java IDE used by a very large margin. Next comes Netbeans, JBuilder, and IntelliJ IDEA all coming in within 3% of each other. This is followed by everything else.
Personally I use Eclipse for just about everything that I do in Java. However, if you had asked me 8 months ago what IDE I used, I would have answered Netbeans. Why did I switch? I had to. I went to work for a shop were if you wanted help with your IDE setup, you had better be using Eclipse cause that was what everyone else was using. This forced me to take the time to learn how to work with it. Now developing a Java program in Eclipse is second nature. Although, I am trying out Netbeans 4.0 for its web apps support. I really like its JSP editor and the fact that it supports Tomcat out of the box. I am also interested in seeing how Netbeans 4.1 shapes up with its support for J2EE and EJBs.
Anyway, check out the poll results at Servlets.com. Just remember to not take them too seriously.