After THOSE 3, I think you just about have to insert this one as best ever.

'83 secured a top 10 season and built respect for our brand in advance of 1984, even though we didn't start the season ranked.

'09 featured a win over a ranked opponent to secure a 2 loss season with a number of very good wins.

Honestly, it's tough to come up with other contenders. The '06, '09, and 2020 seasons all ended on nice bowl wins. None quite had the same quality of opponent ('09 arguably had the opponent in a ranked Oregon State), hype, and/or big stage as tonight.