It would depend on the the interest rates and what you want to do with your money. A GIC is locked in for a set period of time, so if you are saving for something in the short term, a savings account might be a better choice.
However, both tend to have pretty low interest rates, so there may be better places to put your money. A financial advisor or similar professional can help you look at what your options are and decide what is the right choice for you.