Sebastien Buemi has picked his 5 favourite GP's on the BBC: BBC 1) The 1989 Japanese Grand Prix 2) The 1990 Japanese Grand Prix 3) The 1998 Belgian Grand Prix 4) The 2008 Brazilian Grand Prix 5) The 2009 Chinese Grand Prix All in all I think he's made some good (and interesting) choices. You should definitely read his reasoning's to understand some of the later ones.
I like how he only has one race in there to do with himself. Suppose he hasn't been around that long though. Good choices.
He's probably stolen a lot of other people's choices there, some absolute classics. The reasons are written by Andrew Benson I think, it's a shame Buemi didn't do them himself.