Mine would be Bent Kaeding and Ronnie Day at Calistoga 7/1/94 for winged sprints. It was race 6 of a speedweeks show (probably called King of California) at the time. There was a $100k bonus if anyone could win all 6 nights I think (or 5 of 6, my memory fades). Kaeding had only to win that Saturday night to get the bonus. Day banged wheels with him, and they both overcooked it into 3 and had a drag race down the front straight to the checkers with Day just edging him. Day said in the post race interview that there was no way he was going to let anyone get that $100k even if he had to take him out! That was only the second best race of the night. Tony Stewart came out from Indiana that night. Had to race the B main in midgets since he missed the first night. He set a lap record in qualifying by almost 9/10 of a second, and came from the B to the back of the main. Made a last lap, last corner inside pass with a drag down the main to edge Cofer I think. He was absolutely possessed that night and made me a fan from that night on!
For non wing it might be the Oval Nationals this last November, on the second night. Wild main event eventually won by Levi Jones after a wild battle with Jon Stanbrough and Mike Spencer. Great race all the way through including the finish. I have seen a ton of great finishes so just appreciate the talent and daring of these guys.