At least Cam has proven he can outscore another QB every now and then!
Steelers 37 - Packers 36
Ben: 29 of 46 (63%), 503 yards, 3 TDs, 0 INTs, 121.9 passer rating
Aaron Rodgers: 26 of 48 (54.2%), 383 yards, 3 TDs, 0 INTs, 101.3 passer rating
On a night where arguably the best QB in the NFL was incredibly good, Ben was better.
That game was in 2009. There have only been 2 seasons between then and now.
2010: 12-4 in the regular season, made it to the Super Bowl.
2011: 12-4 again? Oh, ok. Beat Tom Brady 25-17? Yeah, I'll take that as filling your requirements of proving he can outscore another QB here and there.