Second what @Johnathan94 says. Ultimately I think the answer to this lies in what you want from your university experience. If you want to build up your independence and experience at living alone and for yourself, then move to Exeter. Even if you're not fussed about typical student nights out, it's hard(er) to build formative, long-lasting relationships and get stuck in to university (even the academic side of things) if you're constantly going back home or if you're commuting.