BUT despite that, league tables are really not everything, You will be spending three years of your life there and you need to be happy whilst you study, You could do with going for an open day at both frankly to get a feel of both to help you decide. OR at the very least try and connect with students there?
I have actually seen both Universities and if i was going i would actually pick UWE over Aston all day long. UWE is in campus university in Bristol which has a massive student community, its a really nice. Others might argue Aston that better and sits on the edge of Birmingham