+1 What Sarah has posted.
Its important to compare the detail of the courses.
I've recently completed a Level 6 course in Management.
Great course, broad based and yet intensive in each subject.
My course had two core modules and so was accredited as a Major Award.
All the course modules are separately accredited and could count towards a further qualification, but with certain core modules a significant qualification can be awarded.
It might be as well to talk to the course administrators to see what doors each course might offer to you for further career development.