Q: and who would you rate as the worst?
A: Best: Pedro Rodriguez Jacky Ickx Gilles Villeneuve Ayrton Senna Michael Schumacher (honourable mention to Keke Rosberg) Worst (all bad drivers in any conditions anyway): Alex Soler-Roig Pedro Lamy Hector Rebaque Piercarlo Ghinzani Pascal Fabre. People who put Prost in the list are thinking of Monaco 1984, where he did just enough to win and looked bad in comparison with the young and reckless Senna & Bellof; or they are remembering the old Prost from the early 1990s - almost all drivers lose their rain ability with age, except maybe the ones I named above. He was one of the best rain drivers of his time in his youth, not quite at the Villeneuve/Rosberg level, but then they were both a little insane on the track at times...