I honestly havent even thought about a prediction yet. I am notorious for going out on a limb and picking the underdogs though in almost any sport which is why I am probably not good with predictions but as far the matchup, I think in order for Zona to win they gotta do a few things
1) Block Harrison & Woodley - Mike Gandy might be the key to the Cards Success in the SB, Levi Brown as well will have to have a good game
2) Win the STs battle - Both of Baltimore's TD drives in the Championship game came off of short fields resulting from STs plays (the Jim Leonard punt return and the bad punt by Mitch Berger). A lot of hidden yardage can be picked up on STs. The more yardage you can make on STs, the less yardage you have to drive against the Steelers defense
3) DRC versus Santonio Holmes will also be a key matchup for the Cards. With Ward maybe not at 100% and Santonio being the deep threat for the Steelers , if DRC can shut down Holmes then that will be good for the Cards
4) Breaston versus Townsend could be a matchup that Zona could exploit. I expect Steve Breaston to have a big game in the SB.
5) The Zona backs and TEs will have to perform well in pass-pro (blitz-pickup). They dont call Pittsburgh "Blitzburgh" for nothing.
6) Zona must have at least one defensive or STs score to win this game in my opinion.