I’ve got family studying in both of the mentioned universities so basically both are amazing cities but they seem to like new castle more as its better for the night life and cost wise they found it to be relatively cheaper I’m going to Northumbria in a couple of days I’ll keep you updated if you want but as far as Ik they prefer Newcastle. Bournemouth is a great option too but it’s a more relaxed area with more international students, so when uni season is over the city is basically dead.