Rate All Teams of the 20th Century

I've found the discussions comparing various teams in the 20th century interesting, here's my table from best to worst of how clubs performed in the 20th century and my reasoning on separating a few of them.
1st Port Adelaide (by a mile)
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2nd Norwood (16 premierships in own right + 2 in war years (I'll give half a win for each of those)= 17 premierships)
3rd North (13 in own right + 2 combined = 14)
4th Sturt 12 premierships
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5th West 8 premierships
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6th Torrens (4 in own right + 1 combined in war years = 4.5)
7th Glenelg 4 premierships
8th South 3 premierships
9th WWT 1 premiership
10th Central
11th Woodville
1st Port Adelaide (by a mile)
daylight
2nd Norwood (16 premierships in own right + 2 in war years (I'll give half a win for each of those)= 17 premierships)
3rd North (13 in own right + 2 combined = 14)
4th Sturt 12 premierships
daylight
5th West 8 premierships
daylight
6th Torrens (4 in own right + 1 combined in war years = 4.5)
7th Glenelg 4 premierships
8th South 3 premierships
9th WWT 1 premiership
10th Central
11th Woodville