http://www.bungie.net/Forums/posts.aspx?postID=35882609&v iewreplies=true&postRepeater1-p=167
Ok, in Legacy (is that what it was? the one with Cortana recounting Forerunner-Flood War) the Forerunners are using weapons made out of light. The handles, admittedly aren't, but the "barrel" and "sights" and such are. That's what I meant by things made of light (also includes bridges and tethers). Admitedly, Jedi/Sith can't use force to move/crush these objects, but everything else is fair game. (The Forerunners, the tanks, the sentinels, the rings)
The Forerunners have no defence to this. There is no connection to sever, no blast to stop, nothing to attack except the Jedi/Sith themselves. Yes, forerunners probably have advanced targetting systems and powerful weapons, but that doesn't do anything when you are fighting someone who can tell what you are going to do, as soon as you think abou it.
What I'm saying is, in a fight the Jedi/Sith would win (which is what I thought this thread was about), but the Forerunners would still have the better tech. It depends on what you are comparing them by, if it is combat effectiveness against each other, the Jedi/Sith would win; but if it was who was the most advanced race, Forerunners, simply because the managed to find out ways of de-evolving entire races, building devices that scan and eliminate organisms of large enough mass and brain power, and the ability to create hard light.
Since I think this was about combat effectiveness, Jedi/Sith (Star Wars) would win in a fight with the Forerunners (Halo)
[Edited on 05.05.2011 1:06 PM PDT]