Finance

Both MBA in Aviation and Finance are two completely different domains. Both are good options in MBA, but MBA in Finance would give you more opportunities than MBA in Aviation. Moreover, specializing in Aviation can narrow down your career path only in the aviation field and you may not receive opportunities from other industry sectors. On the other hand, Finance managers are even recruited in the aviation sector for handling the financial functions of the industry. Apart from all the above, do consider the institute where you are planning to take up the course, for that will decide the package, scope and launching stage of your career! All the very best!

I'm today's current corporate market they prefer marketing as a very good specialisation for people with our without experience. (If you have a very good communication skill then marketing is the right specialisation to choose). Finance on the other hand also had a very good scope if your good with numbers. Finance is all about numbers and your skills so if your good at numbers choose finance. HR is also based on communication. The way you communicate with people. This specialisation deals mostly with aspects related to managing the human resources of a company and human resource development. Although HR does not have much scope in the present scenario, some very good companies can provide you with very good salary packages for a HR post. So, I would like to go with HR but some how in which institute you are planning to do it also have a great impact on career
Best of luck!

It totally depends on your industry experience followed by vastness of your knowledge. As when you opt for formal education style that is classroom teaching then you have ample opportunities on campus and industry considers it more valuable. Suppose you want to do open learning then with your qualification till SAP FICO you can work in industry of choice and keep learning there. MBA finance try to do after gaining experience especially when you plan to do open learning. So, open learning MBA won't contribute much for your bright future, you will require a foundation via experience and then do MBA just as garnishing on main course, that's what makes a wonderful recipe I.e. bright future.
Wish you Luck!