Your favorite pokemon in each type ?

Grass - Turtwig
Dark - Umbreon
Fire - Cyndaquil
Water - Kingdra
Ice - Sneasel
Rock - Larvitar
Steel - Aron
Electric - Pichu
Bug - Scizor
Ghost - Misdreavus
Ground - Marowak
Psychic - Gardevoir
Normal - Munchlax
Dragon - Flygon
Fighting - Breloom

Quoted from someone for the format :)

Normal: Dunsparce
Fire: Charizard
Water: Octillery
Grass: Roserade
Ice: Weavile
Ghost: Dusknoir
Ground: Sandslash
Steel: Steelix
Poison: Seviper
Psychic: Metagross
Electric: Ampharos
Flying: Xatu
Dark: Umbreon
Fighting: Infernape
Bug: Scizor
Rock: Onix
Dragon: Kingdra

Normal: Arceus
Fire: Arceus
Water: Arceus
Electric: Arceus
Grass: Arceus
Ice: Arceus
Fighting: Arceus
Poison: Arceus
Ground: Arceus
Flying: Arceus
Psychic: Arceus
Bug: Arceus
Rock: Arceus
Ghost: Arceus
Dragon: Arceus
Dark: Arceus
Steel: Arceus
???: Arceus

Probably changes daily, but off the top of my head:

Normal: Furret - Tried it in HGSS and realised I love it.
Fire: Charmander/Charmeleon/Charizard - The other Fire starters are good too.
Water: Mantine - Although it's a large type, so there's a lot of choices...
Electric: Magnemite/Magneton - I don't really like the evolved form as much.
Grass: Torterra - Maybe.
Ice: Peel Seel
Fighting: Machamp - I'm not sure, but I've used it a lot, so I guess that says I must like it.
Poison: Crobat - My favourite. There are lots of good Poisons though.
[COLOR=#aaaa4]Ground:[/COLOR] Diglett/Dugtrio - Some other good choices too.
Flying: Crobat - Again.
Psychic: Lugia - Although I tend to only collect legendaries, not train them.
Bug: Shedinja - I like it's interestingness, but it's weak...
[COLOR=#aaaa4]Rock:[/COLOR] Golem - Maybe.
Ghost: Dusknoir - PMD has just made me like it so much.
Dragon: Dragonite - Or Dialga.
Dark: Spiritomb - So cool.
Steel: Magnemite/Magneton - Again.

All of my first were from Hoenn--including ones added in from previous gens--really since Ruby was the first pokemon game I owned.

Water: Mudkip :D
Fire: Slugma
Normal: Zigzagoon
Dark: Mightyena
Bug: Wurmple (definitely remember that one!)
Ice: Snorunt if I'm right
Steel: Idk...Aron I think cause I was trapped in Dewford cave for a long time
Psychic: Ralts

I really can't remember the rest XD.

Normal: Regigigas
Fire: Magmar
Water: Wailord
Electric: Magneton
Grass: Cacturne
Ice: Regice
Fighting: Hitmontop
Poison: Swalot
ground: Tie between Onix/Marowak/Dugtrio
Flying: Rayquaza
Psychic: Tie between Chimecho/Wobuffet
Bug: Tie between Heracross/Pinsir
Rock: Regirock
Ghost: Gengar
Dragon: N/A
Dark: Cacturne again
Steel: Registeel

Oo this will be fun

Normal - Clefairy
Ghost - Gengar
Fire - Kind of a tough call. Probably the Charmanders
Water - gonna go with Quagsire
Grass - Treecko (though I don't like any of his evos so much)
Fighting - grown to love the Machops.
Flying - Pidegot (I'm old school)
Electric - Jolteon
Ice - Lapras (more icy than water to me, though some people would probably disagree)
Dark - Absol (love the look of this thing!)
Steel - Scizor
Bug - Scyther (harrr)
Rock - Kabutops
Ground - Toss up between Diglett/Sandshrew/Cubone
Pyschic - Hypno
Dragon - Dratini/Dragonair

.. I think thats everything.

Any Pokemon whose names are underlined are in my favorite Pokemon.

Lol there's way too many for each one...

• Normal: Kecleon/Castform/Whismur/Smeargle
• Fire: Blaziken
• Water: Walrein/Milotic
• Electric: Plusle/Minun/Rotom
• Grass: Leafeon/Breloom/Shiftry/Tropius/Cherrim/Carnivine
• Ice: Froslass/Walrein/Weavile
• Fighting: Blaziken/Breloom/Gallade
• Poison: Qwilfish?/Gulpin?
• Ground: Torterra
• Flying: Skarmory/Tropius
• Psychic: Gardevoir (And all evos including Gallade)/Deoxys
• Bug: Armaldo/Shedinja
• Rock: Aggron
• Ghost: Froslass/Banette
• Dragon: Latias/Latios/Rayquaza
• Dark: Absol/Weavile/Shiftry
• Steel: Aggron/Skarmory

Alright my turn to take a crack at this. Some are going to be more than one by the way.

Normal: Blissey, Clefable, Togekiss, Lopunny
Fire: Blaziken, Flareon, Houndoom, Charizard, Ninetails, Arcanine
Water: Vaporeon, Milotic, Lapras
Electric: Jolteon, Manetric
Grass: Gloom, Cacturne, Roserade
Ice: Jynx, Froslass, Lapras
Fighting: Blaziken, Lucario, Gallade
Poison: Gloom, Swalot, Gengar, Roserade
Ground: Garchomp
Flying: (prepare this is a lot) Pigeot, Swellow, Charizard, Togekiss, Strapator, Salamance, Vespiquen, Altaria
Psychic: Gardevoir, Gallade, Alakazam, Jynx
Bug: Vespiquen
Rock: Onix
Ghost: Gengar, Misdreveous/Mismagius, Sableye, Dusknoir, Spiritomb
Dragon: Salamance, Garchomp, Altaria
Dark: Houndoom, Sableye, Spiritomb, Cacturne
Steel: Mawile, Lucario

Yeah that's about it I believe. Please not some appear twice because of there dual typing.

Normal → Teddiursa
Fire → Ninetales
Water → Poliwhirl
Electric → Luxray
Grass → Vileplume
Ice → Walrein, I beleive the only Ice Poke i've ever used.
Fighting → Medicham
Poison → Toxicroak
Ground → Donphan
Flying → Noctowl
Psychic → Spoink
Bug → Illumise or Ledian
Rock → Graveler
Ghost → Haunter!
Dragon → Dragonair
Dark → Sableye
Steel → Scizor

I love answering this question :P
As of now:

Rock - Kabutops
Water - Kingler
Electric - Raichu
Grass - Venusaur
Poison - Nidoking (pure pwnage)
Psychic - Alakazam
Fire - Magmar (really like it, but never've used it)
Ground - Sandshrew (it's sooo cute :3)
Flying - Ho-Oh :P
Bug - Beedrill (the one i've used the most); Parasect = close second
Normal - Snorlax :)
Ghost - Gengar
Fighting - Tyrogue (since i can't decide between the Hitmons yet xP)
Steel - Steelix, hands down
Ice - Walrein
Dragon - Dragonite
Dark - Houndoom

Normal: lopunny
Fire: blaziken
Water: azumarill
Electric: pikachu
Grass: roserade
Ice: glalie
Fighting: gallade
Poison: nidoqueen
Ground: marowak
Flying: togekiss
Psychic: gardevoir
Bug: parasect
Rock: corsola
Ghost: banette
Dragon: flygon
Dark: absol
Steel: mawile

Normal: Wigglytuff & Zangoose
Fire: Blaziken
Electric: Magnezone
Grass: Grovyle
Ice: Weavile
Fighting: Gallade
Poison: Seviper
Ground: Garchomp
Flying: Honchkrow & Xatu
Psychic: Gardevoir & Alakazam
Bug: Ariados
Rock: Tyranitar
Ghost: Dusknoir & Gengar
Dragon: Garchomp
Dark: Darkrai
Steel: Dialga & Magnezone
Water: Empoleon & Kingdra

Normal: Snorlax
Dark: Absol
Poison: Gengar
Psychic: Alakazam
Dragon: Garchomp
Water: Empoleon
Grass: Roserade
Fire: Houndoom
Ice: Abomasnow
Fighting: Gallade
Steel: Metagross
Ghost: Dusknoir
Ground: Nidoking
Rock: Aggron
Bug: Scizor
Flying: Staraptor
Electric: Raichu
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