Readers know that I am not a pasta fan, but a little Bolognese as a primi - if it's really good - is ok. Just not too much.
Bolognese is a northern Italian meat sauce. Marinara is southern Italian tomato sauce. Spaghetti and meatballs is an American thing, marinara with meatballs.
Bolognese is not a meat sauce really - it's a meat-flavored sauce. Mrs. BD made a double recipe yesterday for friends tonite. Always better the next day.
The only recipe we endorse is Marcella Hazan's. The bit of nutmeg, and the milk, make it perfect.
Remember the rule: Toss the almost fully-cooked pasta in the hot saucepan with the sauce. Don't dump sauce on top of pasta. Some parmesan shavings on top is nice, and maybe a little parsley. Almost any sort of pasta works.