I'm not sure who came up with the original Oreo cookie. I'm going to assume his name was Mr. Oreo. I don't know what else he would be called.
Mr. Oreo got a lot of things right with his original cookie - the chocolate flavor was great, the texture of the cookie was perfect, and the consistency of the creme is not too hard, but not so soft that the cookies won't stick together. Surely, this was the pinnacle of sandwich cookie innovation.
However, Mr. Oreo got one thing critically wrong....the cookie to creme ratio. Nabisco saved the day in 1974 when they introduced this, the Double-Stuf Oreo (mislabeled on Amazon as Double "Stuff", which is nigh-inexcusable), the inevitable correction to the cookie's only flaw. I can hardly describe the perfection achieved by this wonderful confection. The cookie that was perfected in ages past is coupled with what should always and forever be known as the proper amount of oreo creme filling. The original oreo is seriously lacking in comparison.
As a postscript, don't let the haters tell you there is only 1.84 times the creme, rather than double - since when was double a mathematical term that meant precisely twice as much, anyway?