re: The Masters degrees with highest earning potential. We all know what #1 is

Getting an online MBA from a top tier school is not the same at all as getting a full time MBA from a top tier school. Acceptance rates for online are higher and you miss out on the primary advantage of attending a top tier business school - the networking and on campus recruiting opportunities you are exposed to. Otherwise, just an MBA isn't really going to get you anywhere. Now granted, if it's free it can't really hurt to pursue. Just saying that's a lot of debt to incur and the benefit often doesn't outweigh the cost.