This is how I see the clone scale:
Clone as ****: Almost entirely the same moveset as another character - Ex. Young Link, Toon Link, Dr. Mario, Pichu, Roy
Semi Clone: Shares roughly half a moveset, may have been Luigified - Ex. Luigi, Falco, Ganondorf
Psuedo Clone: Might look similar and share a couple moves, but otherwise completely different - Ex. Lucas, Wolf, Lucario, Ike, Jigglypuff
Not a clone: Completely original - Ex. Mario, Bowser, Samus/Zamus, Peach, Zelda/Sheik, Miss Fit, Yoshi, Sonic, Dedede, Wario, Pit, DK, Diddy, R.O.B.
Woah das unique: Something far from what anyone else does - Ex. Rosalina, Ice Climbers, Snake, Olimar, Mega Man, Pokemon Trainer
Because Doc is completely a clone.