Even though it's apparently cruise control for cool to hate T3 for the sake of it, I don't espcially like the movie. Like I (think) aluded to earlier, T3 has a couple of plot holes, mainly the annoying JC age bit. Plus the beginning where ahnuld has to get some leather like in the last movie was, well, lame from my point of view. Plus the T-X was, well, lame again, espcially compared to T-1000. The T-800 in the first movie really gave the aura of a unstoppable killing machine, and i'm quite sure that the role of the Terminator was almost literaly made for Arnold.
The T-1000 was kind of strecting it, but unlike the T-X, Robert Patrick at least looked like a fairly tough cop. The T-X just looks like a random chick(Yes, I know her name) in red leather running around killing people.
I think T3 really needed some polishing up on the script, maybe a rewrite or two. That would of help it much in my view.