As mention the advantages of halls is that bills are included and all your contents is insured. If you are new to a unfamiliar surroundings, moving out for the first time insurance is a good idea.
I'm moving into a house next year, paying £60 for rent, £10 a week for bills, internet and insurance. There's 8 of us, but they aren't from my current flat. You make more friend with people in your halls/ block, so there's more oppourtunity to live with likeminded people. Instead of being stuck with your housemates at home.