On the subject of clones, I found this:
"This is like a free dessert after a luxurious meal that was prepared free of charge. In a restaurant with this type of service, I don’t think there’s anybody who would say, “Change this to a meat dish!!”
Yet, I’m told [to do that] about Smash Bros. But, I guess since a lot of them are children, it cannot be helped.
Could you please leave it to me to select [characters] with man-hours and costs in mind? However you look at it, the game is a great bargain buy as a result."
—
Masahiro Sakurai (on Clone Characters in Smash)
http://nintendoeverything.com/sakurai-on-the-clone-characters-in-smash-bros-wii-u3ds/