Perlin Noise vs Simplex Noise

So, when I was doing my proposal for this project, I found out I should be using perlin noise to generate height maps so that my generated world will have height to it. But (there's always a but), upon further research I have happened upon the question, Perlin or Simplex. 

With the community debating over which one is more appropriate, It seems general consensus is that Simplex is the better algorithm, due to it having a lower computational complexity and requiring fewer multiplications. However the difference in the actual effect is marginal, and wouldn't affect the final product too much.

One major argument for using Perlin noise in the specific project, is that Unity has a built in Perlin noise function, so why over-complicate the project needlessly.

However, If I still have time at the end of the project, I may consider coming back to this point, and looking into implementing simplex noise