That's funny because I hated S3 as soon as the symbiote randomly fell out of the sky.
I didn't hate X3 as soon as Scott died, because I just refused to believe that they would actually make him a cameo and kill him. So I had to watch the film to the end before I hated it with a passion.
S3 was the worse. I couldn't even get past the first 30 minutes of it. I've seen bits and pieces of the rest. X-Men 3 was terrible but I actually enjoyed it.
Spider Man 3, because you can tell how much they overstuffed it; they even admitted Venom got shoved in there because some production head (Avi Arad?) ordered it. And they didn't have the excuse of changing directors like X-Men had, with Brett Ratner having to pinch hit at the 11th hour. Sam Raimi chose to reverse all continuity with the plot point of Flint Marko being Uncle Ben's killer, instead of the anonymous mugger. I thought that was wrong.
__________________
"I'm not smart so much as I am not dumb." - Harlan Ellison
Lol, thanks for reminding me about the Flint Marko/Uncle Ben bit. I had forgotten that. Yeah, it was terrible on the level of Transformers 2 where Bay decided that the general public didn't remember entire fight in New York in T1; therefore, the transformers were still unknown to the public. WTF?