Joint account mostly -- not really any his-and-hers... Hub had more saved £££ to start with, but that's mostly gone now for the wedding, honeymoon & when we bought our house (downpayment, furniture, repairs, etc). He still has a sole account, the same one he had originally, & there might be a bill or two that gets direct debited out of that -- but not much £££ in his sole acct...both salaries go to the joint account now & most of the bills paid from that. I still have a sole acct in the USA -- for possible sake of convenience when we go there -- but it's virtually empty of $$$ right now.
We didn't do joint accounts until we married though. If one is co-habiting, I wouldn't recommend joint accounts unless you have some sort of legal domestic partnership agreement in place. I've just been in too many co-habitation situations before that went south & unfortunately you don't always have the same legal/financial rights in that situation as you do in marriage. Just my opinion.