Rodgers has 32 TD's on the season. Crosby has 21 FG.
Carr has 24 TD's. Janikowski has 25 FG
Roethlisberger has 25 TD. Boswell has 14 FG
Brady has 22 TD. Gostkowski has 20 FG with 4 more games played than Brady.
Stafford has 22 TD's and Prater has 28 FG's.
So out of your lists, you've shown that Stafford's (and I'd say Carr) ability to get the ball in the end zone is anemic. He's the signal caller and the only player to touch the ball EVERY offensive down (4th downs excluded). We get it, you want to believe in them, and that's fine. I'd love for them to be legitimately good, but they aren't and Stafford isn't helping the situation because you don't see him picking the team up in the tough situations and leading them to victory (IE, the wins against winning teams on the road, it's not good).