Yes, a masters in management is similar to an MBA, but it's designed for people with little or no work experience. You can read about the US options here:
http://www.find-mba.com/board/23411I think you will be better off with an MBA, but by September 2014 you not have many schools open to you since many MBA programmes look for at least three years' experience; generally students are in their late 20s in the US. But if waiting is not an option for you then an masters in management from a great school will be a much better option than an MBA from a fourth or fifth tier school.
There's an exception: In India, the MBA is generally taken in the early 20s. There are some great schools available in India but, because the students don't have much work experience, Indian MBA programmes generally fail to produce managers with the soft skills, team skills, communication ability and cross-cultural skills that the top global MBAs develop.
So, please consider the MiM programmes if you are in a hurry.
PS If you can look outside the US, to Canada, Europe, China or Taiwan there are some even better MiM programmes
http://rankings.ft.com/businessschoolrankings/masters-in-management-2012