re: Whats the best major/minor to pair with Construction Management?

I would say some sort of finance or accounting. Most of the PMs I work with have CM degrees along with some sort of finance or accounting minors. My degree concentration is in accounting and I use that more often than anything that I learned from CM coursework. I'm not in project execution, though. Most of the construction knowledge that I use comes from hands on experience since I came up from the tools.