Ravens are on a much better pace than the Steelers. By the time they have been in the league 79 seasons they should have 9 championships and 41 playoff appearences.
Also, The Ravens have turned 11.76% of their seasons into championships. For comparision, the Steelers have converted only 7.59% of their seasons into championships.
Basically, a very valid argument can be made that Ravens franchise history > Steelers franchise history.