Thank you Hidenori Kusaka for creating Sapphire one for the obvious reason that she's great and perfect please stop doing her dirty and two because you've forever cemented May's association with Sapphire and Alpha Sapphire instead of Ruby and Omega Ruby and Alpha Sapphire is my favorite game and May is my favorite girly.
Also because it means she usually gets drawn in the Aqua Uniform by fans and it suits her way better than the Magma Uniform.