Whats a good online college to pursue MBA

I was thinking of signing up for Western Governors University but after a second thought, Harvard Extension School's online program came to mind. While cost of attendance is a factor. I would like to know get some opinions and the factor my decision on that.

I can only take an online program because I am very mobile. This week I'm in Australia, a fortnight after I might be in Asia or Africa.

I'd also appreciate other college or program suggestions.