Even though I am not from either uni, I can offer some advice of things to consider when comparing the two.
It looks like you already have covered some of what I was going to suggest such as student life. Some other things you may want to add to your list includes things like distance to home/shops, are you able to continue hobbies that are important to you at these universities, what are the services like (careers, academic support and pastoral care).
One other tip when listening to students experiences of their university do remember that everyones experience is different. In my opinion, the more you put into uni, the more you get.
Have you planned to attend any open days? How are you comparing the two universities eg spreadsheet/ pros and cons list?