If we take the top sides in contention for the flag against one another, then by my counting:
Adelaide are:
2-0 against Sydney (with one win away),
1-0 against Saints (with one win away),
2-0 against Kangaroos (with one win away), and
0-1 against West Coast.
5-1 overall, and 3-0 in away games.
==
West Coast are:
1-1 against Sydney
1-0 against Kangaroos (with one win away),
1-0 against Saint Kilda, and
1-0 against Adelaide (with one win away).
4-1 overall, and 2-1 in away games.
==
Saints are:
0-1 against Adelaide,
0-1 against West Coast
1-1 against Kangaroos (with one win away), and
1-0 against Sydney.
2-3 overall, 1-1 in away games.
==
Sydney are:
0-2 against Adelaide,
1-1 against West Coast,
1-1 against Kangaroos, and
0-1 against Saints.
2-5 overall, and 0-3 in away games.
==
Kangaroos are:
0-2 against Adelaide,
0-1 against West Coast,
1-1 against Saints (with one win away), and
1-1 against Sydney.
2-5 overall, and 1-3 in away games.
Adelaide are:
2-0 against Sydney (with one win away),
1-0 against Saints (with one win away),
2-0 against Kangaroos (with one win away), and
0-1 against West Coast.
5-1 overall, and 3-0 in away games.
==
West Coast are:
1-1 against Sydney
1-0 against Kangaroos (with one win away),
1-0 against Saint Kilda, and
1-0 against Adelaide (with one win away).
4-1 overall, and 2-1 in away games.
==
Saints are:
0-1 against Adelaide,
0-1 against West Coast
1-1 against Kangaroos (with one win away), and
1-0 against Sydney.
2-3 overall, 1-1 in away games.
==
Sydney are:
0-2 against Adelaide,
1-1 against West Coast,
1-1 against Kangaroos, and
0-1 against Saints.
2-5 overall, and 0-3 in away games.
==
Kangaroos are:
0-2 against Adelaide,
0-1 against West Coast,
1-1 against Saints (with one win away), and
1-1 against Sydney.
2-5 overall, and 1-3 in away games.