Luck of the draw here too, when I had DS, i happened to get "my" midwife, from my surgery, which was fab
When I had DD, I had never met the midwfie, and although it meant I had to spend a little mroe time getting to know her, and explaining about my pg history, and birth history problems from DS, she was fab - because that's what they are trained to do. She was joined by a midwife I knew (but hadn't expected to be present).
If you go into hospital for a baby, the chances are you won't know the midwives on duty, and woith changes of shift you might find there are several over the time you are in labour.
I'd go for 1 unfamiliar (well 2) at home, who you can chat to, and get to know, without them buggering off somewhere else, over a hospitla birth anyday.