We have 2 joint accounts. One is "mine" and one is "his," but both are joint.
We have, ahem, different record keeping abilities. Mr. FP didn't know how to balance his checkbook because it was never, ever in error. While I sometimes loose seventy-three cents or something. For us, it seems more straightforward to each be responsible for an account, rather than to have two people monkeying around with the same account. He does automatic bill pay, I do savings transfers and paying of any unusual bills (taxes, car insurance, etc.).