Gotta agree with Denver being in the blueblood category now for those reasons. Won 3, historically lost a bunch of SBs by blowouts, but they were still there. Solid franchise.
Funny that Miami had the only perfect season in the Super Bowl era and isn't even in the discussion. Had a great run in the early 70s & into the 80s with Marino, but no SB titles since 1973. Have had too many lean years since his retirement.
Raiders would no question be there if you asked about bluebloods about 15 years ago. Too many awful years of late(except last year) though.
Niners belong there - 5 SB wins, but are currently a franchise with a horrible front office.