i wish to do a phd in biology, I heard US universitites are the best in that field, then France. But I want to study in the UK, is it as good, concerning reputation for future job but also for level of education. I was advised Bristol, Newcastle, Sussex Brighton, University college and Imperial College, Oxford and Cambridge. The programs are roughly the same. However in the UK the centre of research in my field is the best in Bristol. But I am intending to move abroad for a job and wonders which institution is worldwide best known and respected?