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.
Depending on you capacity and capability to invest matters. Always saving and investing in 50-50 percentage not possible. The way one does it and how well he manages to save and invest will be helpful as both Saving and Investing will help. Performing only one might cause trouble in future.