Is NetBeans vs Eclipse a Valid Debate?
Rather than an either/or proposition, developers may want to look into an environment that is bringing many features of the open source world into one arena: MyEclipse. Free trials allow developers to try the features of the product, and at the price of $30/yr (including full support and documentation), the time and monetary investment is worry-free.
I opine that the polarization of this market is not good for the consumer, and a good start to bridging the gap is the use of plugins that incorporate features of both fantastic environments. Just my take.