My favorite urban legend has to be either Bloody Mary. Not the actual Elizabeth Bathory, but the legend about looking in a mirror and saying her name 3 times and all the terrible things that happen to you. When I was a kid, my babysitter's daughter told me about it. We tried it then, but it was daylight out, and so she convinced me that it didn't work then, but at night. I remember that night, I wouldn't walk down the hall because there was a mirror on the outside of the bathroom door. When I finally had to, I ran past it, with all the lights on, of course. I think the next day I had actually forgotten all about it, lol. :P

I can't recall the name, but those in the know about Urban Legends will probably know the story. There was this rocking chair (in a museum now) that was in a pub, and it was the favorite chair of this guy, and when he died he cursed the chair - and since that time, anyone who sits in it, dies shortly afterward, even if they don't know about the legend. This is such a problem that it's actually mounted high off the floor in said museum in England.

My favorite is "Humans can lick too." The one about a girl left home alone by parents with only her dog to protect her.

WOW!!! Hard to say, Spring Heel Jack, The Mad Gasser of Matoon, MIB, The Jersey Devil, "The Flying Dutchman". Oh let me look, got a book on just that topic.