Boomburst: Only Swellow has any potential to abuse this.
Flygon, though it's not a
thrilling possibility, being actually weaker than STAB Earthquake when otherwise equal.
Rock: Nothing can really take advantage of physical Power Gem.
... not even Persian? Really?
Ghost: All the physical Ghost types who would like a physical Shadow Ball come Gen IV or later.
Banette has more Attack than Special Attack, as does Shedinja.
Steel: Pretty much any Steel type with Flash Cannon already has Iron Head.
Not strictly accurate, but the only pre Gen IV exception is Magneton... and its not a Steel type and its Attack is less than half its Special Attack.
Fire: Regular Charizard is the only Pokemon that somewhat benefits from a special Flare Blitz. Yeah, just stick to Mega Charizard X or Y. Pretty much everything which gets Fire Punch gets Flamethrower except for Alakazam.
Ninetales, who gets Nasty Plot but not Swords Dance. Also Grumpig, Ludicolo, Gardevoir... there are several Pokemon that get Fire Punch but not Flamethrower and are Specially inclined.
Focus Blast: Breloom, Dragonite, Hariyama, Machamp, and Snorlax benefit from having a strong physical fighting attack, but that doesn't necessarily make any of them good.
Kangaskhan, Golem, Marowak, Nidoking (Sheer Force!), Sandslash, Miltank, Tyranitar, Aggron (It has Superpower, but this doesn't weaken it to use), Regirock, Registeel, Slaking... all of these are Gen I-III, get Focus Blast, don't get Close Combat.
I'm trying to imagine by what definition Dragonite is
bad, when it loses its Fairy weakness and retains pretty much everything that makes it good. At worst its movesets might be a bit more awkward at times.
Vacuum Wave: Hariyama, Heracross, Machamp, Medicham (non mega), and Scizor (non mega) appreciate physical fighting type priority.
Poliwrath. No it does not get Mach Punch.
Hurricane: Only Dragonite can take advantage of this.
Not strictly accurate, because regular Pidgeot has more Attack than Special Attack. (But really, you'll be using Mega Pidgeot) There's also Shiftry, who has more Attack than Special Attack, though that's iffy since its STABs are both Special and it's only a 10 point difference.
Sludge Bomb / Sludge Wave: Nidoking is the only Pokemon I can think of that actually can use the physical poison type attacks well.
Dugtrio, Crawdaunt, Qwilfish, and Quagsire all get Sludge Wave, are from Gen I-III, and have more Attack than Special Attack, by quite the margin for the first three. For Dugtrio it can be a coverage move against pesky Grass types. (And to a lesser extent Flying and Bug, but Rock Slide does that better)
Scizor getting to use Bug Buzz / Silver Wind is the only thing of note here.
And Flygon and Ninjask can run Bug Buzz. Flygon in particular appreciates having a Physical attack for wrecking the Grass types that resist its Ground STAB.
Golduck and Masquerain appreciate having Special priority in the form of Aqua Jet -and don't tell me nobody uses Golduck, because Cloud Nine is enough to cause it to show up on teams. (Masquerain is likely to remain crap, particularly since Quiver Dance synergizes poorly with its STABs being both Physical)
Psychic: There is basically no reason to use Zen Headbutt when Psychic and Psyshock are available.
Actually, Jirachi arguably appreciates the silly combination of Calm Mind+Zen Headbutt. Kind of a silly plan, but it's got something over Psychic/Psyshock.
Unfortunately, it looks like going back to the Gens 1-3 physical / special split harms a lot more Pokemon from those generations than it helps. The theorymoning seems really limited here.
You're ignoring lots of weird things like Alakazam getting the Elemental Punches as Special again. Gengar appreciates having Fire Punch be Special again, for instance. Just looking at the top moves and the top 'mons doesn't give you a complete picture of the effects. Another example is that Serperior gets Aqua Tail but not Surf or Scald -and of course it
far prefers to run Special now that it has Contrary Leaf Storm. It also appreciates Special Knock Off and Special Outrage while we're at it. The list you made is not remotely representative of what the meta will look like.
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Interestingly, Magneton is more notably different compared against Magnezone than in Standard, since it's a pure Electric type rather than part Steel. This in particular gives it no double weakness to pick on, making Eviolite Magneton arguably even tougher in spite of its reduced set of resistances/immunities.
