Which is better, Surgical-grade stainless steel or Aerospace-grade aluminum?

@tedu obviously the stainless steel, that's why Elon musk wants his Space Ship to be stainless.... LOL. Maybe not lol? But actually #cotijacheese is better than either thing and #sex is pretty close to cotija cheese so we know it's way better.

Have you tried a bean burrito with cotija cheese in it lately? I rest my case.