Gen 1: Ninetails

Gen 2: Houndoom

Gen 3: Mightyena

Gen 4: Lucario and Skuntank currently are tie

Gen 5: Zoroark

Gen 6: Delphox

Gen 7: Lycanroc

Gen 8: Thievul

Gen 9: Koriadon

1: Haunter

2: Quagsire

3: Salamence

4: Palkia

5: Genesect

6: Greninja

7: Zeraora

8: Dragapult

9: Koraidon

I'm not experienced as to what pokemon are in which region

All I know is Blacephalon is the best Alolan pokemon

Toxtricity is the best Galarian pokemon

Garganacl is the best Paldean pokemon

Idk the other regions too well

Wouldnt garganacl be paldean

Unless theres a secret hisuian nacli

I'm uneducated in the regional stuff, so if it is Paldean then sure, it's the best Paldean pokemon.

I was probably just being stupid and confusing it with a different region/area but whatever xd

Kanto: Dragonair

Johto: Sneasel

Hoenn: Milotic or Rayquaza

Sinnoh: Giratina

Unova: Zoroark

Kalos: Aegislash

Alola: Decidueye

Galar: Corviknight

Paldea: Clodsire

Gen 1= Blastoise

Gen 2= Quagsire

Gen 3= Ludicolo

Gen 4= Roserade

Gen 5= Hydreigon

Gen 6= Sylveon

Gen 7= Golisopod

Gen 8= Duraludon

Gen 9= Tinkaton

Based Gen 5 choice