I looked at the teams that appeared in the past ten Super Bowls, and how they fared in four categories in the regular season. Points scored, points against, field goal accuracy, and plus / minus in the turn-over department. For the first three, it's league rank. For plus / minus, it's just that. The data follows, with my attempt at a summary at the bottom.
|Team||Points||Points Against||FG Pct.||Plus / Minus|
|Patriots||4||2 - tied||1||plus 9|
|Eagles||8||2 - tied||11||plus 6|
|Steelers||9||3 - tied||13||plus 7|
|Colts||2 - tied||23||4 - tied||plus 7|
|Bears||2 - tied||3||6 - tied||plus 13|
|Patriots||1||4||8 - tied||plus 16|
|Cardinals||3 - tied||28||8||even|
|Packers||10||2||23 - tied||plus 10|
|Giants||9||25||22 - tied||plus 7|
|Ravens||10||12 - tied||6||plus 9|
|Seahawks||8 - tied||1||2||plus 20|
19 of the 20 teams placed in the upper half of the league in scoring. 16 placed in the top 10. Their average was 7th, with the two median teams 7th and 8th.
15 of the 20 teams placed in the upper half of the league in points against. 13 placed in the top 10. The average rank was tied for 9th (9.5), with the two median teams ranked 4th and 7th.
13 of the 20 teams placed in the upper half in field goal accuracy. 8 placed in the top 10. The average rank was 14th, with the median teams ranked 12th and 13th.
17 of the 20 teams had plus turn-over scores. 12 were plus 8 or better. The average was plus 8, and the median teams were both plus 9.
9 of the 20 teams were top 10 in both points scored and points against. 14 were in the upper half of the league in both. Each of the 6 other teams was in the top 9 in one of the two categories. 5 were top 4 in that category and 3 led the league in it.