cmake -G "Visual Studio 14" ../kodi
When I opened the .sln (through kodi-sln.bat) I was presented with this and I clicked ok without changing the default settings.
I changed the settings @Montellese said and started the build (Debug/Win32).
This is so frustrating People clearly have met and dealt with this problem before, yet it doesn't seem to be solvable for me.
I appreciate everyone here trying to help.
Edit: Maybe I should boot my Xubuntu dual boot and use that for KODI dev..