JUM'AH JOURNAL-- Polygamy and Islam

There is more about polygamy I wish to say but at this time I am only talking about the equality and inequality of sexes in in the marital bond.
I shall draw upon these ayat and I am quoting".....And the women shall have rights similar to the rights against them (husbands), according to what is equitable, but men have a degree (of advantage) over them and Allah is exalted in power and wise" (Baqarah, aya 228)
"Men are protectors and maintainers of women, because Allah has given the one more (strength) than the other and because they support them from their means. Therefore the righteous women are devoutly obedient and guard in (the husband's) absence what Allah would have them guard...."
(Nisaa, Aya 34)
So on the one hand the rights of the wife are equal to those of the husband but husband's rights are a bit better because of his responsibilities of maintaining the family which may consist of wife, or wives and or children. he has to be the bread-winner because God made him capable of hard physical work. Now the women can also when trained do hard physical work but None of the William sisters can win Roger Federer. Yes, Bobby Riggs was defeated by Billy Jean King but the difference was obvious
Without going into the logistics and details of equality of the two sexes what I would like to say id:
Neither does a man suppress a woman because of his ' derjah' being higher because she has equal rights which he must respect. Nor does a woman try to over do in exerting her rights so that she ends up suppressing a man for that would encroach upon his rights.
A balance is what comes out of these ayat even when we consider the next aya of being obedient to the man and guarding his property etc. in his absence. This is not to mean that she obeys like a servent. There are situations however in the life when some serious decisions have to be made for the family that is where a man requires not only the help of the wife in making a better decision but also wife's 'obedience', the essential condition being it should be a matter within Islamic shariah and nothing against Islamic teachings.
We have examples from the life of the prophet SAWS when he asked for help and got it from wives. However he was a prophet and thus had additional 'superiority' therefore his conduct is associated with those of his characteristics specific to him as a man as well as a prophet but hat brings up the justice between wives question again so I shall restart another point.
What are the advantages and disadvantages of more than one wives both for the man and for the woman? I shall plan that on a paper and come back with a summery for you next week insha-Allah