I have a couple of thoughts--and this is just my opinion.

I recommend that you go to the best possible MBA program you can get into. The reason why is that business (unlike law, medicine) is not a "profession" in a true sense--consequently, MBAs are often differentiated from one another by reputation of school. Of course there are other critical factors like the skills/work experience you have, but at the end of the day the MBA degree itself may not matter that much to a recruiter--it could be the school. My two cents, but I may be completely wrong...

With regard to going part time vs. full time: I have heard that the educational experience is significantly richer if you attend a full-time 2-year program rather than attend part time. You will have to do your own research to determine whether this is a valid conclusion or not, but this may be a trade off to consider if you're deciding between the two types of programs.

I hope this perspective helps, good luck!

An MS in Finance may be a good substitute if you plan on having a finance career--otherwise, this degree probably isn't as flexible as an MBA.

I'd think carefully about your goals after you get your degree...