The Seattle Seahawks might have the best defense in each of the past two decades. The Legion of Boom was ranked as the fifth-best defense of all-time by the NFL, but Seattle’s 2025 “Dark Side” defense is probably too current for most people to comfortably place it in the annals of history.
However, a side-by-side comparison to the NFL’s 10th-ranked defense—2015’s “No-Fly Zone” of the Denver Broncos—shows that the 2025 Seahawks might actually be the league’s best defense since …