I'm traveling for business and am staying in a hotel with on-demand movies so I watched the Matrix Reloaded last night (after the embarrasing Cubs loss) and I have to say after watching the rally/rave scene again that I really don't know why people dislike it so much. My thinking on this is that this is an important scene and very much in the spirit of the movie. I think it was included to show something very human (sex, sensuality, dancing, etc), a contrast to the machines. At several times the movie points out the interdependance of man and machine (images of 2001:A Space Odyssee come to mind) and so I think it is interesting that the film would also address how they are different.
I also didn't feel watching the movie this second time that because Neo is so powerful that there wasn't any tension in the battles, as I kinda did the first viewing. I thought the battles were awesome (except for the mini-duel with Seriph(sp?)). I spent less time looking for visual effects and more time watching the ebb and flow of the action. The Burley Brawl is very cool. If you squint just a bit you cannot tell when the CG stuff is operating and you just see the agents being picked off with the pole and flying through the air. Good stuff.