an ideal marriage is not a 'who is smarter now' competition,if anything its not a competition at all,we lose it altogether once we turn it into one. i might be alone in this view but honestly any institution that is meant to be on.. till death is a very serious one to say the least,,,and again dropping the 'i & you' to adopt the 'we' aint that easy either
my stay in this world informs me that not even the best of geniuses can make perfect decisions 80% of the time let alone all the time..(remember by 'time' i mean from the time you get married to the time death do u part).. there has to be compromise and this rule has no exemption whether the wife is intelligent or dump if anything intelligence is a term used to describe a property of the mind that encompasses many related abilities,such as the capacities to reason,to plan,to solve problems,to think abstractly,to comprehend ideas,to use language,and to learn
Note the underlined words,if the man is the problem and you are intelligent then fix it/him this has no limitation to marriage. you can fix him right from courtship
The more you dissagree to agree the stronger the resultant bond anyway.
my ideal age for marriage is the age at which both of you can communicate effectively and understand each other and the underlying reasons behind the topic at hand... it can be 18 or 60 for all i care.....but then u must be ready in your own terms.....
Its just me whatever choice you make in life make sure that you can live with it.