I'm running a 2014 15" MBP as a Windows machine with bootcamp. It's not bad, but would not have been my first choice (Company issued) My personal beef is the keyboard layout sucks (for a Windows guy). Other than that it's a perfectly capable Windows machine.

Having said that, my first choice is the Dell XPS 15 (http://www.dell.com/au/p/xps-15-9530/pd)

Otherwise the Lenovo Carbon or Yoga Pro 2/3 are also great depending on what you're looking for.