Granted, they haven't won a SB yet, but they took down Indy the last 2 years in the playoffs and won 2 playoff games in the 07-08 season.
Not to mention their playoff losses have come against New England and Pitt, two of the best franchises of the decade.
The top-heavy AFC is too loaded to criticize a team like San Diego for not getting it done in the playoffs. No team has won more games than Indy in the last decade, then you have New England and the Steelers, and San Diego hasn't been blown out in any of those playoff games. Hell, two years ago when they took down Indy, both Rivers and Tomlinson were playing on one leg. It takes a supremely talented team playing at its absolute best to get to the SB from the AFC.
Another misconception is that the Chargers are this unbelievably talent-heavy team. They have taken serious losses over the last few years. Now I will say that our passing attack and defensive backfield are two of the tops in the league, but the O-Line, D-Line and LB's are league average at best (OL less than average).