It may not be the best poll ever designed but I think it says enough. The top three are as follows.
1) Barack Obama
Good choice, it's great to have someone literate as "leader of the free world" again.
2) Nelson Mandella
Possibly should be at number 1 given his track record, but without doubt a worthy contender.
3) Jade Goody
EPIC FAIL. Britain I want to disown you. Yes, she has cancer and will die. That shouldn't be a reason for somebody whose only reason for fame is (1) being stupid, and (2), going on Big Brother, to rank higher than David Attenborough. Or even, well.... anyone else really.