My wife and I have joint everything. For us though, it was an easy choice - we started our marriage just out of college and neither of us had any separate assets to begin with, so it didn't seem like a monumental choice.
Some people describe a prenup as 'the first motion in a divorce yet to be filed'. I guess I feel sort of the same about separate bank accounts. Some friends of mine do the separate thing and seem to be very happy about it - though there is some occasional friction about who will pay for something. But the whole idea of it seems strange to me. If you're in a marriage with someone, why would you have divided accounts? Why would there be 'your' money and 'their' money. Isn't the whole point to partner together through life?
So what's your take? If you were getting married (or are married), which would your choice be?
A smart guy would stick to his right hand...a woman can only make a man miserable. Women are the source of all evil in the world. There is no woman behind a great man but there were women behind Hitler, Hirohito and Stalin.