After all, Pikmin has had 3 games now, which is more than franchises like Kid Icarus have had in the last 20 years.
Pikmin
Pikmin 2
Pikmin 3
Kid Icarus
Kid Icarus: Of Myths and Monsters
Kid Icarus: Uprising
Although Uprising completely forgot Of Myths and Monsters, apart from the completely unmentioned use of the Silver Armour when Pit has the Three Sacred Treasures.
But, I have to disagree. The only real differences Alph could have to Olimar would be Pikmin selection, slightly different stats and hurtboxes, and possibly Brittany and Charlie as assist characters, alluding to the Captain Throw and KoppPad orders mechanics found in Pikmin 3. (But Smash 3DS focused too much on graphics to allow that to run, hence no Ice Climbers) Pitoo, on the other hand,
could have had completely different weapons, while having the same run speed, jump height, and weight as Pit. And even those would be optional, as Uprising has a weapon weight mechanic. They're literally clones, in Uprising's plot. His implementation was just lazy. Him being in the game, on the other hand, was a good idea. Just done badly.
But nope, he had a slightly different moveset and stats. At least the Doc. is a series vet, and keeps the down B tornado, unlike normal Mario. And let's be straight with Lucina. She got in because she's a woman. Planned as Marth's alt (reasonable, like Robin, Villager, and Wii Fit Trainer but with a different name) and given a spot on the roster because she was tweaked to have no tipper. She's more similar to Marth than Pitoo is to Pit. Even in Awakening, Marth used Lucina's animations, and Lodestars and Great Lords are almost identical. (I guess it kind of makes sense? Sorta?)
I do agree with Louie, the President, Brittany, and Charlie as extra alts, though. Maybe with one extra costume per alt - like how Little Mac has wireframe versions of all his swaps.