If you have time, try both. Nothing will beat first-hand experience in these IDEs. Some people like Eclipse. Some like Netbeans. It really depends on your preferences.

In my case, I use Eclipse for most of my development. Normally the milestone builds if I'm doing my open source stuff. I use the stable versions for my work.
I have tried the new version of Netbeans and it has changed a lot. However, I took it off my machine because I needed the space. haha
Melvin Vivas
Lemongreen Inc.
Empowering your business with SMS
http://www.lemongreen.biz