What's yours? Do they make you laugh? Do they make you cry? Good stories? Special effects? Does it say more about you than the content itself? Here's 2 of mine
1) Cheltenham and Gloucester - 1990s. There was a series of these sort of ads of this kid diving for pearls and I always saw him as a strange Aqua Boy sort of hero the way he'd thwart the divers as they try to grab him.
2) Scottish Widows. These ads always seem quite sinister yet camp. The widdow never ages, a lot of the time she's roatating whilst outstretchign her arm and is it implied she murdered her husband the way she smirks and walks along clifftops?