This name has a really smooth sound and it surprises me it hasn’t gained a ton of popularity in recent years. Outside of a few athletes I’ve never heard this name anywhere. I hope the name maintains its unique status but I think it will definitely gain in popularity very soon. Definitely one of the best “American” or “Made Up” names.
This is one of my favorite names at the moment, I wish it wasn't so associated with Marlon Brando. It's not that I dislike him but I wouldn't want to name my child Madonna or Hermione or Gandalf or something that makes most people think of a specific person. But that said, a lot of people are named Marlon so I'll definitely use it, I just wish more famous people were named Marlon so that Marlon Brando wasn't the first person that most people think of when they hear it. I wish it were as common as Robert or John.