You can soon throw Bill Cowher in that group. An excellent coach in the regular season who almost always gets them there. In their last 8 playoff years, they are 8-0 in their first playoff game, 1-7 in the 2nd game. He's been to 1 SB but I don't know if they'll ever be back under Cowher. I've lost count how many times they've been favored and lost in the post season.
That works in College but rarely in the Pros do fans say " Horray, we're #6 ! " and are satisfied with that, year in and year out.