Personally, I've always just kind of figured that "Retro" picks are, to some extent, a sort of sub-category to "surprise" picks. I mean, are there really any retro characters who wouldn't be at least a little surprising?
No. But only because the Smash community uses the term "retro" wrong.
This notion that a retro character has to be from a franchise that's dead is erroneous, yet endures.
There are plenty of characters that are ACTUAL retro characters that wouldn't be considered surprises at all.
Clones aren't even the issue. It's that every newcomer but Peach, Bowser, Mewtwo and Marth was a weird one. And could've easily been Nintendo fundamental character as Diddy, Wario, Dedede or anyone of the likes.
Just replace ICs, G&W and Sheik with these characters and the roster looks a million times better even with the clones.
This is something I've thought about before...(Note: I wrote the below before the DLC passes came out)
I go back in time to when Melee was being made:
I stop Dr. Mario, Pichu, Young Link, Roy, Ice Climbers, Game & Watch and Sheik from being playable characters.
I make it so Ganondorf and Falco have completely unique, non-cloned movesets.
I travel forward in time to when Brawl was being made:
I stop R.O.B, Zero Suit Samus and Pokemon Trainer from being playable characters and add Charizard instead.
I make it so Lucas, Wolf and Toon Link have completely unique, non-clone movesets.
I replace Galleom, Duon and Tabuu as bosses with Metal Gear REX, Mother Brain and Medusa.
I make R.O.B., Ice Climbers and Game & Watch assist trophies.
I travel forward in time to when Smash 4 was being made:
I stop Wii Fit Trainer, Duck Hunt, Lucina and Dark Pit from being playable characters.
I make Wii Fit Trainer and Duck Hunt assist trophies.
I replace Master Core as a boss with Andross(64).
I travel forward in time to when Ultimate was being made:
I stop Piranha Plant, Chrom and Incineroar from being a playable characters and add Decidueye instead.
I make Isabelle have a completely unique, non-clone moveset.
I make Piranha Plant, King Hippo and Eggplant Wizard assist trophies.
I add Dr. Mario, Sheik and Zero Suit Samus as alt costumes.
I add Pichu, Lucina, Dark Pit, Dark Shadow, Bass and Shadow as echo fighters.
I replace Galeem and Dharkon as bosses with Safer Sephiroth and Giygas and make sure all of Brawl's bosses return.
At this point, I have removed a grand total of 12 unique movesets from the game. And added a total of 7 unique movesets back into the game. So with my last 5 surplus movesets, I just add 5 characters from my wishlist: Ryu Hayabusa, Bill Rizer/Lance Bean, Arthur, and Erdrick.