I've chosen Barcelona 1996 because the margin of his superiority over everyone else, in such treacherous conditions, simply beggared belief. To use an often-overworked adjective, it was an awesome performance.
Hungary 1998 was special for the way he obediently followed Ross Brawn's radio demands re lap times to the letter (or, more accurately, to the number) to win a race that at one point looked well out of his reach.
And, last but only just least of the three, I've included Malaysia 1999, his first event after a long-ish lay-off while his broken leg was healing, because it remains the iconic Grand Prix masterclass of number-two driving, handing teammate Eddie Irvine a win that he not only didn't deserve but didn't even understand how he'd 'won'!
Nothing in recent F1 history has been as shocking, or as brazen, as the professional foul that Michael committed at Rascasse earlier this year. Indeed, thinking about it still makes me angry. So does writing about it, so that will have to do.