Out of Aston, Kent and Southampton which is the best for international MBA student's placement in any sector?

I think Aston is much better, with 63% placement. If you want a better chance of placement, you will need a much better school.

I'm awaiting response from university of Edinburgh business school. That's my first choice.

71% employment, according to the FT ranking. Why not attend a better school? 

I do not have a GMAT. 

Is not taking the GMAT worth $300,000 to you? Search the board for my post "Why you should take the GMAT"

[Edited by Duncan on May 15, 2020]