Here’s another reason to like NetBeans: the jVi plugin.
It changes the NetBeans code editor to Vim, which is in my opinion much more powerful text editor than the standard one in NB. What makes jVi even better is that you actually get all the code-assist and other features present in NetBeans’ normal editor!
I’ve used some Vim plugin for Eclipse, and another for Visual Studio, and neither of them got it right. jVi is definitely the best Vim-IDE integration I’ve seen so far.
Thanks to Adam Jorgensen for pointing it out!