I'm in exactly the same boat as you!
I feel the first year will be better spent with less to do, focusing more so on studying and social life rather than cooking,cleaning,ironing on top of that(If I were to stay at home that will get done for me :P) but on the other hand I feel like I lose that whole student aspect if I were to stay at home.
The problem with us is if we do get accommodation then it will be Champion Hill or any of the halls further away which are deemed the lesser on the social side however i'm sure it is still ok.
On my open day someone told me that they stayed at home and still got involved with a lot of student based activities and still had a lot of fun so really and truly it is up to you, 2nd and 3rd year for me is a guaranteed shared flat but I feel accommodation in the first year will just maximize the Freshers year potential!