First of all, I want to precise that both of two politics are vey important for all the countries, and a serious government , in my opinion, should not appear the discussion in these terms.
To improve the whealth and the standard of living in a country, in a immediate way, a government obtains his recourses by improving industrial skills more quickly.
This way the employment rate increases and is lower the necessity if foreign investiments.
But, on the other hand , the only way, to my seem, of maintaining the standard of living in a country is investing in education, creating the bases so that this population could develop his studies in the own country, in the future.
Otherwise the whole investiment would get lost, being part of the whealth of other countries.
To finish, if I woud to choose , I would prefer investing in education first, because I think is the better option in the long term.