favorite pokemon per type in each generation

[DrunkGecko]

i'll only do first 5 gens because they're the only ones i have knowledge about

Gen 1:
Bug - Beedrill
Dragon - Gyarados
Electric - Raichu
Fighting - Machoke
Fire - Ninetails
Flying - Golbat
Ghost - Haunter
Grass - Bulbasaur
Ice - Dewgong
Normal - Lickitung
Poison - Muk
Psychic - Alakazam
Rock - Geodude
Water - Poliwhirl

Gen 2:
Bug - Heracross
Dragon - Dragonair
Electric - Pichu
Fighting - Machamp
Fire - Cyndaquil
Flying - Murkrow
Ghost - Misdreavus
Grass - Celebi
Ice - Sneasel
Normal - Miltank
Poison - Crobat
Psychic - Espeon
Rock - Sudowoodo
Water - Mantine
Dark - Umbreon
Steel - Skarmory

Gen 3:
Bug - Dustox
Dragon - Rayquaza
Electric - Magneton
Fighting - Medicham
Fire - Torchic
Flying - Beautifly
Ghost - Duskull
Grass - Treecko
Ice - Glalie
Normal - Smeargle
Poison - Roselia
Psychic - Kirlia
Water - Kyogre
Dark - Absol
Steel - Aron


Gen 4:
Bug - Vespiquen
Dragon - Garchomp
Electric - Luxray
Fighting - Lucario
Fire - Infernape
Flying - Staraptor
Ghost - Mismagius or Giratina cant decide
Grass - Shaymin
Ice - Frosslass
Normal - Munchlax
Poison - Croagunk
Psychic - Mime Jr
Rock - Cranidos
Water - Empoleon
Dark - Darkrai
Steel - Dialga

Gen 5:
Bug - Genesect
Dragon - Axew
Electric - Galvantula
Fighting - Sawk
Fire - Reshiram
Flying - Swanna
Ghost - Chandelure
Grass - Snivy
Ice - Vanilluxe
Normal - Lillipup
Poison - Trubbish
Psychic - Gothitelle
Rock - Archeops
Water - Frillish
Dark - Zoroark
Steel - Excadrill

 

[RETRO-VETRO RETRO-VETRO]

Type	Favorite Pokémon
Fire	Charizard
Water	Gyarados
Grass	Venusaur
Electric	Pikachu
Psychic	Alakazam
Ice	Lapras
Fighting	Machamp
Flying	Pidgeot
Ground	Dugtrio
Rock	Onix
Bug	Scyther
Ghost	Gengar
Poison	Nidoking
Dragon	Dragonite
Normal	Snorlax
Steel	(Not introduced yet)
Dark	(Not introduced yet)

 

[Segadude113]

Gen 1:
Bug - Butterfree
Dragon - Dragonite
Electric - Electabuzz
Fighting - Hitmonlee
Fire - Arcanine
Flying - Fearow
Ghost - Gengar
Grass - Victreebell
Ice - Articuno
Normal - Ratticate
Poison - Arbok
Psychic - Mewtwo
Rock - Onix
Ground - Dugtrio
Water - Cloyster

Gen 2:
Bug - Araidos
Dragon - Kingdra
Electric - Ampharos
Fighting - Hitmontop
Fire - Houndoom
Flying - Lugia
Ghost - Misdreavus
Grass - Chikorita
Ice - Piloswine
Normal - Smeargle
Poison - Crobat
Psychic - Xatu
Rock - Sudowoodo
Ground - Donphan
Water - Lanturn
Dark - Murkrow
Steel - Steelix

 

[RETRO-VETRO RETRO-VETRO]

On second thought:

Generation I (Red/Blue/Yellow)​

Type	Favorite Pokémon
Fire	Charizard
Water	Gyarados
Grass	Venusaur
Electric	Pikachu
Psychic	Alakazam
Ice	Lapras
Fighting	Machamp
Flying	Pidgeot
Ground	Dugtrio
Rock	Onix
Bug	Scyther
Ghost	Gengar
Poison	Nidoking
Dragon	Dragonite
Normal	Snorlax
Steel	(Not introduced yet)
Dark	(Not introduced yet)

Generation II (Gold/Silver/Crystal)​

Type	Favorite Pokémon
Fire	Typhlosion
Water	Suicune
Grass	Meganium
Electric	Ampharos
Psychic	Espeon
Ice	Sneasel
Fighting	Heracross
Flying	Skarmory
Ground	Donphan
Rock	Tyranitar
Bug	Scizor
Ghost	Misdreavus
Poison	Crobat
Dragon	Kingdra
Normal	Togepi
Steel	Steelix
Dark	Umbreon

Generation III (Ruby/Sapphire/Emerald)​

Type	Favorite Pokémon
Fire	Blaziken
Water	Milotic
Grass	Sceptile
Electric	Manectric
Psychic	Gardevoir
Ice	Glalie
Fighting	Medicham
Flying	Salamence
Ground	Flygon
Rock	Aggron
Bug	Ninjask
Ghost	Banette
Poison	Seviper
Dragon	Rayquaza
Normal	Slaking
Steel	Metagross
Dark	Absol

 

[Raziya The Seeker]

Here's my picks for Gens 1, 2 and 4, as those are the ones I've played. I barely remember 3rd Gen.

GEN 1
Fire - Ninetales
Water - Gyarados
Grass - Oddish
Electric - Electrode
Psychic - Kadabra
Ice - Articuno
Fighting - Hitmonchan
Flying - Pidgeot
Ground - Sandslash
Rock - Geodude
Bug - Butterfree
Ghost - Haunter
Poison - Nidoqueen
Dragon - Dragonite
Normal - Persian (lot of contenders though...)

GEN 2
Fire - Entei
Water - Politoed
Grass - Chikorita
Electric - Pichu
Psychic - Espeon
Ice - Delibird
Fighting - Tyrogue
Flying - Ledian
Ground - Wooper
Rock - Sudowoodo
Bug - Shuckle
Ghost - Misdreavus
Poison - Spinarak
Dragon - N/A (none that debuted in Gen 2)
Normal - Blissey
Dark - Houndoom
Steel - Scizor

GEN 4
Fire - Infernape
Water - Floatzel
Grass - Carnivine
Electric - Magnezone
Psychic - Chingling
Ice - Glaceon
Fighting - Lucario
Flying - Chatot
Ground - Gabite
Rock - Cranidos
Bug - Kricketot
Ghost - Mismagius
Poison - Croagunk
Dragon - Dialga
Normal - Lopunny
Dark - Skuntank
Steel - Bronzor

 

[Ryderdog1332]

Hoo boy here we go

Gen 1:
Bug - Scyther
Rock - Rhydon
Dragon - Dragonite
Electric - Jolteon (favorite eeveelution too)
Fighting - Poliwrath
Fire - Charizard (obviously)
Flying - Dodrio
Ground - Sandslash
Ghost - Gengar
Grass - Tangela
Ice - Cloyster
Normal - Snorlax
Poison - Tentacruel
Psychic - Kadabra
Water - Lapras

Gen 2:
Bug - Heracross
Rock - Corsola
Dragon - Kingdra
Electric - Ampharos
Fighting - Hitmontop
Fire - Cyndaquil
Flying - Crobat
Ground - Wooper
Ghost - Misdreavus
Grass - Celebi
Ice - Piloswine
Normal - Girafarig
Poison - Ariados
Psychic - Slowking
Water - Lanturn
Dark - Houndoom
Steel - Steelix

Gen 3:
Bug - Armaldo
Rock - Regirock
Dragon - Salamance
Electric - Manectric
Fighting - Blaziken
Fire - Camerupt
Flying - Swellow
Ground - Flygon
Ghost - Duskull
Grass - Breloom
Ice - Walrein
Normal - Slaking
Poison - Seviper
Psychic - Gardevoir
Water - Swampert
Dark - Crawdaunt
Steel - Aggron

Gen 4:
Bug - Yanmega
Rock - Rhyperior
Dragon - Garchomp
Electric - Magnezone
Fighting - Infernape
Fire - Heatran
Flying - Gliscor
Ground - Hippowdon
Ghost - Rotom
Grass - Torterra
Ice - Mamoswine
Normal - Porygon-z
Poison - Toxicroak
Psychic - Bronzong
Water - Gastrodon (why yes, I do love ground types)
Dark - Weavile
Steel - Dialga

Gen 5:
Bug - Durant
Rock - Carracosta
Dragon - Haxorus
Electric - Zebstrika
Fighting - Emboar
Fire - Volcarona
Flying - Braviary
Ground - Krookodile
Ghost - Golurk
Grass - Ferrothorn
Ice - Vanilluxe
Normal - Sawsbuck
Poison - Venipede
Psychic - Victini
Water - Samurott (Hisuian form too)
Dark - Hydreigon
Steel - Excadrill (my #1 favorite)

Gen 6:
Bug - Vivillon
Rock - Tyrunt
Dragon - Zygarde
Electric - Heliolisk
Fighting - Hawlucha
Fire - Talonflame
Flying - Yveltal
Ground - Diggersby
Ghost - Trevenant
Grass - Chespin
Ice - Avalugg
Normal - Pyroar
Poison - Dragalge
Psychic - Malamar
Water - Volcanion
Dark - Greninja (my first starter!)
Steel - Doublade
Fairy - Klefki

Gen 7:
Bug - Golisopod
Rock - Lycanroc (midday)
Dragon - Kommo-o
Electric - Tapu Koko
Fighting - Passimian
Fire - Turtonator
Flying - Minior
Ground - Mudsdale
Ghost - Alolan Marowak
Grass - Tsareena
Ice - Alolan Ninetales
Normal - Drampa
Poison - Nihilego
Psychic - Solgaleo
Water - Araquanid
Dark - Incineroar
Steel - Kartana
Fairy - Tapu Fini

Gen 8:
Bug - Centiskorch
Rock - Drednaw
Dragon - Appletun
Electric - Toxtricity
Fighting - Sirfetch’d
Fire - Carkol
Flying - Corviknight
Ground - Sandaconda
Ghost - Calyrex
Grass - Grookey
Ice - Snom
Normal - Wooloo
Poison - Eternatus
Psychic - Galarian Slowking
Water - Dracovish
Dark - Obstagoon
Steel - Duraludon
Fairy - Zacian

Gen 9:
Bug - Loki
Rock - Ogerpon
Dragon - Baxcalibur
Electric - Bellibolt
Fighting - Great Tusk
Fire - Skeledirge
Flying - Bombirdier
Ground - Iron Treads
Ghost - Gholdengo
Grass - Scovillain
Ice - Chien-Pao
Normal - Cyclizar
Poison - Revavroom
Psychic - Farigiraf
Water - Tatsugiri
Dark - Roaring Moon
Steel - Archaludon
Fairy - Tinkaton