I agree with Slackbot, there are times when writing amnesia scenes are so unrealistic, that the cliche becomes a bad thing... like whenthe character comes to, not to ask who are they, or where are they, but when they awaken as a completely different person altogether... like, wasn't there an episode of The Flintstones where Fred had amnesia, and thought he was some kind of English gentleman? Also, I was once a part of an RPG at another forum where we used the amnesia cliche in a similar manner where one of the characters woke up thinking she was a princess being rescued from the tower she was locked in.
The only ime I remember the amnesia cliche being used in a creative/original way was with Sid & Marty Krofft actually: they were so over-budget and were losing so much money on H.R. Pufnstuf, that they couldn't afford to film the final episode, so they did an episode where Jimmy came down with amnesia, and both Pufnstuf and Witchiepoo are trying to get him to remember who he is: with a series of flashbacks of previous episodes.
I think, all things considered, I could go either way wirh the amnesia cliche... would I look for a chance to write it into my work sometime in the future? Probably not, but that's no guarantee that any character of mine may end up with amnesia at one point or another.
EDIT: heralde ziffeled me.