I think we should combine both, save money is very important because if there is a sudden needs then we will use the money. very good investment for the future so as not poor, for portion, I recommend 50% for save and 50% for investing.
Doing both is really a must. Because investing alone without making some savings will make your investment to be vulnerable from collapse.
But if you are an investor and you do have back up funds like savings even collapse will happen you can have an assurance that you can make your investment strong.