All are 'good' Unis so all will be fine for a PhD - none will give you an advantage over the others, especially since at postgrad level its *you* and your research that matters not the brand name of the Uni you did you Masters at.
Look at the promotional videos for each of these Unis on You Tube. Read their entries on Wikipedia. Think about what sort of Uni you want to go to - inner city London, rural campus Uni? Which is cheaper? Which will give you a better student experience (campus Unis usually win on this). And read the course descriptions carefully - which optional units would you choose, and why? Which Dept has the staff who are interested in the same areas as you?