A couple for me that helped cement my love for Ohio State football:
1995: OSU vs Notre Dame - First game I ever watched as a kid, got me hooked.
1998: OSU vs Michigan - First time since I'd started following the Buckeyes that they actually beat Michigan.
2002 OSU vs Michigan - Established Tressel's innate ability to beat scUM
2002 OSU vs Miami - For obvious reasons
2006 OSU vs Michigan - One hell of a nailbiter
2009 OSU vs Oregon - A game that shut up a lot of haters
2014 OSU vs Cincinnati - I'd spent most of my life as a Buckeyes fan in Arizona. This was the first game I'd ever attended at Ohio Stadium. It only took me 31 years to make it to my own personal Graceland