Seeking Your Advice For Applying PhD in UK for 2020

[smithhehehaha]

Hello! I am from Hong Kong. I got a BA degree in Social Policy with a 2:1 in 2013 with a Master degree in Global Political Economy in 2017. Originally I did not have a clear idea for a PhD, but during the process on making the term-end assignment for a Master course (About Disability Studies in China), I studied a lot of info. about it, I not only got a decent grade for this course, but also have a clearer idea on pursuing research on this topic. 

However, I did not immediately go for a try because I want to make it very clear if I should go for it, after 2 years of thinking. I decided to go for it in 2020 and started drafting my detailed PhD proposal and making contacts to possible supervisors (About Disability Studies in China). Till now, I got replied from 3 of them that they want to make further discussions on my proposed topic and advised me to make formal application and I do so. They are: 

a. Dr. Sarah Dauncey from University of Nottingham (It was recommended by a Professor in Oxford, she has sufficient experience on Chinese Studies, including the field on Disability Studies), 

b. Dr. Angharad Beckett form University of Leeds (She leads the University's Centre for Disability Studies) 

c. Prof. Alan Walker from The University of Sheffield (The most distinguish one among the threes, indeed he said he is willing to supervise me. He has a close connection to my alma mater, and he supervised lots of students from where I live, but I think he is not really specialized on my proposed topic, may he is a specialist on Gerontology) 

So what should I do now, when two of them wants to make further discussion about my topic as they are experienced, but a more distinguish one already showed his interest to supervise while he is not really fitting my interest? Should I told the rest that Prof. Walker is willing to supervise me? Please advice.