Which company?

Willis Towers Watson
Aon

#1

I have progressed to the final stages of a few companies for a pensions based internship in the summer?:
PwC
Mercer
Towers Watson
Aon
Barnett Waddingham

I was just wondering what company people would suggest/wouldn’t suggest going for if I got a couple of offers?
ie. prospects of getting a grad job amongst other things

Thanks