I say make a funny animation even if it means you don't win, the chances of winning are so small anyway, you might as well be remembered as a funny runner-up
Last years winner was serious, but I prefer the more funny animations personally, and I'm not going to comphremise my animation by making it more "winning material".
edit:
I think my point is best described by a tomato:
http://www.chiefdelphi.com/forums/pi...&quiet=Verbose
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<Patrician|Away> what does your robot do, sam
<bovril> it collects data about the surrounding environment, then discards it and drives into walls
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2005 Israel regional Winner
2005 Radioshack Innovation in Control Winner