makes sense
If IBM is the only real contributer, obviously it is going to have an IBM slant to it. Duh.
The question of whether IBM wields too much influence over Eclipse is again in the air, with Foundation members critical of the first steps towards the platform's next release. Eclipse executive director Mike Milinkovich has responded to concerns over an apparent lack of diversity and of a railroading of technical decisions …
Although I can't comment over whether NetBeans is better than Eclipse or not as I haven't used NetBeans for ages, the reason I stay on Eclipse is because a lot of the plugins I use are only available on that platform. Now, if Eclipse, NetBeans, Idea et al would come together and agree to a standard for plugins so that you could build IDE independant extensions, that would be great for developers and would foster competition. One can dream...