Hows Mba at Surrey University? Scope of work and salary figures?

I don't think Surrey claims to place most of its MBA graduates into UK jobs. If you want to work in UK MBA roles, focus on schools in the FT ranking. 

I also have offers from Cardiff, Queens Belfast 

And waiting for Aston, Exeter
What should i opt for?

I got through Surrey Mba with a scholarship 

Focus on your goals and take a look at the posts linked from my profile page. I don't think there is any particular career goal for which these are the best option.