Think I might have just seen the greatest Wimbledon final ever.

Rafa Nadal topped Roger Federer, proving once and for all that Superman is human. The match lasted until well past dusk in England and was about one or two games from having to be suspended until Monday -- before the Spaniard won the fifth set 9-7.

The rivalry between Federer and Nadal has become legendary, the best individual rivalry I can think of since Bird and Magic in the 1980s, at least among rivalries that were such for positive reasons.

Back in the 1960s, we had Bill Russell and Wilt Chamberlain, and in the 1970s, we had Ali and Frazier. But what are the best individual rivalries of the past 20 years or so?

That is ... besides Federer and Nadal ... (winning game from 2007 Wimbledon final):

Larry Bird and Magic Johnson are the standard bearers for positive, spirited competition -- unmatched in terms of rivalry.

Darrell Waltrip and Dale Earnhardt were mega rivals in the 1980s, and it often got ugly:

Sometimes rivals are best measured by our obligation as viewers to watch whenever they appear together. The rivalry between Mike Tyson and Evander Holyfield was pretty one-sided in truth (in favor of Evander), but a Tyson-Holyfield bout was the event of the late 1990s. And craziness was usually sure to happen: