Montana won championships with 2 completely different SF teams. In 81 he won a SB with Ricky Patton, Earl Cooper Johnny Davis, Walt Easley and Paul Hofer as his main rushing threats none of which averaged more than 3.6 yards a carry. He won with Dwight Clark, Freddie Solomon, Earl Cooper and Charlie Young as his main receiving threats. Practically the same team went 6-10 the year before and went 3-6 the year after during the 82 strike season. That wasn't a high caliber team in 81 but it was led by a high caliber QB who made that team special by bringing them from behind in a game they should have lost.
Eight years later Montana won a championship with a completely different SF team. In 4 SB appearances Montana didn't suffer a single turnover and won one of his championships on a last ditch drive with only seconds remaining. Mannings career has been made off his consistent regular season performances and his 4 league MVP awards. He's been nothing special in postseason where he has a losing record and has only 5 more TD's than turnovers.