Choosing a Cambridge college

Hi all,
I want to study engineering at uni of Cambridge and I am narrowing down the colleges I may want to apply to. My priorities are having an en-suite room (ideally for all years of my degree or as many years as possible), the college having good food and the college having a somewhat well equipped gym (which ideally is free). Here are the colleges I've narrowed it down to:
Clare
Corpus christi
Downing
Emma
Jesus
Kings
Queens
Selwyn
Sidney Sussex
St Catz
Can anyone give me any advice as to which college to pick. Thanks in advance