Look at the amount of wins per division, provided by Pro Football Reference website:
AFC
East
North
South
West
14
12
10
10
11
12
8
9
7
5
6
8
4
4
6
4
36
33
30
31
NFC
East
North
South
West
10
11
13
7
10
10
11
7
6
6
10
6
6
6
2
5
32
33
36
25
Several observations can be made.
1. The stronger divisions, according to this data are AFC East and NFC South, both had 36 total wins for all of the teams in each division.
2. The weakest division is NFC West with 25 total wins for all teams in that division.
3. Although the Oakland Raiders brag a 6-0 in one category, in this global analysis, the Raiders are ranked three in the AFC West in terms of total wins.
4. Of the four teams in the AFC West, the total wins, respectively, for each team were ten, nine, eight, and four, with the Oakland Raiders having eight wins.
5. The NFL ...
Article Source: Bleacher Report - Oakland Raiders