There is no way to make a blanket statement of "XYZ Method" is better. Each couple has to take a good, honest look at themselves, their income, their lifestyle, and their spending history/habits.
For us, everything is joint, and everything is an open book. He pays the bills, and does all everything related to money. Not because I
can't, but because he likes to be the one 'in charge', so to speak. That doesn't bother me a bit, I know all the online passwords, I know how to check the account balances for everything, so there's no secrets even though the money is 'his thing'.
It wouldn't make sense for us to try to have 'separate' accounts or anything, since I don't have any income. When I
was working, my paycheck went direct deposit into the checking account at my old bank, into what was "my" account before we were married. When we were first married and I was working my income bought groceries and was my 'allowance' to spend on whatever. I never spent any of 'his' income at that time. After I got furloughed and the kids came along, I just buy what I need and keep an eye on the account balance. I'm not a big spender, and I'm the cheap one of the two of us.

When I went back to work briefly last summer, I had my direct deposit go back into my old account (not our primary account). This wasn't in an effort to keep 'my' money separate from 'his' money for the sake of "this is MINE" or anything, but what we wanted to see was
exactly how much I was really making, after paying for daycare, gas, the cleaning service, lunches, and all the other expenses associated with me going back to work. I paid all the costs directly related to me working out of that account so we could see what was left over.
It works for us to just have everything joint. We're both listed on
all our accounts as joint account holders. We've both also learned from our past mistakes. Years ago, we both fell into the spend & charge trap. At one point we had substantial credit card debt. With careful planning, tough decisions, and time, we are now completely debt-free, with the exception of one small car payment and the mortgage. That's it.
Again though, it really is an individual thing as to how to manage your finances in a marriage. Bill knows I'm not a big spender, so he knows I'm not gonna go out and spend hundreds or thousands of dollars on something without talking to him about it first. Really, anything over $100 I consider discussion-worthy, and I'll let him know what it is I think we need and make sure he thinks it's something we need too. We recently bought some (badly needed) bedroom furniture, and we both walked out of the store like, "OMG, we just spent X thousand dollars! Aaack!" (And no, we didn't charge it

We paid cash. There's no better feeling in the world.)