MBA vs MS in Leadership

[Regards]

There are a lot of different majors that don't require a particular undergraduate degree. What are you interested in, and why do you want the degree?

I feel as though I need a competitive advantage. I want to work in the corporate world, higher up the ladder. I'm just not sure where at and at, and at what level. I've considered focusing on quality management and getting certs in six sigma etc. If i have no current requirement for a masters at my current position, should I just not worry about it? I'd hate to get older and regret it.