University of Bristol or University of Aberdeen for MSc?

I am between two universities in the UK to attended to obtain my MSc in ecology. I have been accepted to both the University of Aberdeen and University of Bristol. Since I am in the USA and cannot visit these schools before I make my decision I was hoping for some advice from anyone who lives in the area or if someone has attended either of these schools. I know that both schools are well respected but honestly, I feel like I'm making a big decision on little knowledge of the atmosphere, professors, and community. I have been to the UK several times ( London and Cambridgeshire ) I really enjoyed both cities and the country as a whole. Any advice would help!