Choosing a KCL dorm

I am going to study a postgraduate programme at KCL and I am not sure what dorm to choose. AFAIK I am to study mostly at Strand campus, so my list narrows down to Moonraker/Orchard Lisle and Iris Brook /Wolfson House (from what I can tell the Great Dover is only for undergraduates and the one on Stamford street is already fully booked).
I am also considering Julian Markham/Vauxhall-Atlas/City-Vine (everything except for Stratford really).
Is there anyone who can provide any guidance or some personal experience at least on how to choose among those? Thanks in advance

P. S. I am new to TSR so please tell me if I broke any sort of an unwritten rule by posting this.