Pornography, undoubtedly. The dehumanized voices, the four cold and sharp notes like the blade of a knife, followed by galloping drums like a horde swallowing everything in its path ... Thirty years later, I still get chills.
I've always liked Hot Hot Hot!!! intro, that 'what was he saying?' thing followed by an excellent guitar riff and snap snap drums. All of the songs named above are all excellent choices too. I think any intro is superb because you know that there's a wonderful cure song coming up when you hear one.