>Rattata/Raticate
The worst. Got fucked up. I expected slow, but not lower attack... Hidden ability is shit, was expecting Adaptability to fire off dem nice double priority. But alas, these are the only ones that are as bad if not worse than the originals.
>Raichu
Ability is kinda stupid, but it is technically an upgrade to regular Raichu. Even if a small one.
>Sandshrew/Sandslash
Even if they don't seem to be so, they're upgrades too. Way more resistances, plus they're the best Slush Rush users and actually work really well with most Hail setters thanks to key resistances. But in the end they work to similarly to the originals, basically being rapid spinners who try to abuse weather.
>Vulpix/Ninetales
Probably the best Alolan formes. Great speed, decent typing, great movepool, good hidden ability. Decent concept as well. Probably my favorites too.
>Diglett/Dugtrio
Stupid designs, and worse than their counterparts because of lack of Arena Trap. However, apart from that one ability, they're better in every way. These work like an UU Excadrill, which is nice. Too bad for the unfunny design.
>Meowth/Persian
Weird design choices but nice upgrades. Technician special attacker is great for in-game, and Fur Coat is great for competitive. They basically work like Liepard except more defensively. It's an interesting gimmick for such an underlooked mon.
>Geodude/Graveler/Golem
Interesting choice for a typing, 3 good abilities which means versatility and unpredictability which is always nice. Still slow tho. The cannon thing looks weird but I still like it. Overall a nice upgrade for such a classic mon that had a great downfall over the years.
>Grimer/Muk
A small upgrade that does more than enough to shoot it to decent viability. Good typing and great design.
>Exeggutor
The upgrade we all secretly wanted it to have. Solid.
>Marowak
The upgrade it needed and, more importantly, deserved. Fits it so nicely. A bit edgy tho. Great typing, and Lightningrod works great on it.