I stumbled across this compilation of the entire 66 commercials of the famous "PC vs. Mac" days. To me, this is some of the cleverest marketing ever. Notice the subtlety with which the Mac guy wins these standoffs without appearing to be mean. Slamming a competitor this hard but making the audience laugh at the same time is a very difficult balance to strike. Well done. I also think it's a bit of a laugh the way the "PC"guy slighlty resembles Bill Gates, and the "Mac" guy Steve Jobs. This cannot be coincidence.
Of course, these are so funny because they ring with truth. Mac's are unarguably miles above the rest.