Eclipse's Maven support is not great. IntelliJ's is better but Netbean's is the best in my opinion. The problem with IntelliJ's Maven support is it doesn't handle multiple non-nested projects well.

If I were able to set up global Maven build configurations without having to jin up a dummy parent project, I'd make the switch. IntelliJ has superior support for running and debugging individual JUnit tests and application debugging in general.

I also like the ability to set up a variety of "runners" in IntelliJ and then execute them with a fuzzy find as if I were on the command line.