4. Trish Stratus Vs. Lita (2004)
A full 10 years before the advent of WWE's Women's Revolution, Stratus and Lita got the main event slot on Raw, in a battle for Stratus' Women's championship. Lita won what turned out to be a very good match, but there was greater significance here.
While women had gone on last on Raw before (Lita vs. Stephanie in 2000, for example), this match was a straight-up exhibition of two talented women as no-frills wrestlers. It was a rare concession in the "Diva" era that women could deliver big in an advertised main event.