Lions and the Big Game

With the Saints Super Bowl bound that leaves the Lions, Browns (II), Jags and Texans as the only teams not to make the Super Bowl.
Officially the Lions and the Browns have the longest streaks. The NFL considers the Ravens an expansion team and the recreated Browns the extension of the former AAFC team. That's ridiculous, the Ravens "expanded" with the entire Browns roster and front office??? So in my mind it is the Lions and 3 expansion teams.
The Lions are the definitely the only NFC team not to make the big game. Even the Seahawks who spent a majority of their time in the AFC have qualified as an NFC team. The Colts in the AFC since 1970, have represented the Nationals in the Super Bowl...
No franchise is more deserving the reputation as the leagues worst!