Hello
I got through full timr Mba for September 2023 intake in Birmingham, Aston, Glasgow, Exeter and waiting for Strathclyde ...

Could anyone suggest which one to opt for?

This depends on your goals. Birmingham stands out, as it is ranked in the FT. 



If you were admitted to all these schools, are you applying to the best schools available for your goals. Why are you looking only in the UK? Did you consider Cranfield, Durham, Ivey, McGill, Smurfitt or Trinity? These are schools in the bottom 25 of the FT 100, 

Hello, I am on staged admissions for Durham and have been asked to wait for next round..

I still have interviews left for Lancaster and Leeds

What about Glasgow and Strathclyde?

There is no reason to consider Glasgow, Leeds, or Strathclyde when Birmingham, Durham and Lancaster are better MBAs for almost all students.  To compare those better programmes, read: How to use LinkedIn to find the best school www.find-mba.com/board/33571
I am not very concerned by Lancaster falling out of the FT ranking this year: this could be due to the programme's small size. However, I suggest you pick between those programmes based on which is them is the best fit with your career goal. Birmingham has a slightly more senior and more satisfied cohort than Durham, a better location, and better career services.