As a long time die-hard Philadelphia Eagles fan, my absolute favorite era was during the Buddy Ryan years. "Buddy Ball" was a popular term used back then that described a hard-nosed and hard-hitting style of play.
When I think of the Buddy Ryan era, I think of three things: dominating defensive play, Randall Cunningham and a coach that wasn't afraid to speak his mind.
Some people will remember that era, much like the current Andy Reid era, as ultimately being a disappointment because we never even won a playoff game (let alone a championship) with Ryan at the helm. That is the only blemish on an otherwise great era of Philadelphia football.
After winning the 1985 Super Bowl with the Chicago Bears as their defensive coordinator, Ryan came to Philly in 1986 and brought with him the famed "46 Defense" and a "take no crap, punch em' in the mouth" attitude. In Philly, defense and attitude goes together like peanut butter and jelly (or a cheese steak and beer).