Favourite Pokemon from each gen

[Ys]

Gen 1: Dragonair
Gen 2: Lugia
Gen 3: Mightyena
Gen 4: None
Gen 5: Zoroark
Gen 6: Greninja
Gen 7: Lycanroc

Dragonair is my favorite overall and most of my favorites come from the first two gens.

 

[VisionofMilotic]

#1 Dragonite
#2 Suicune
#3 Milotic
#4 Togekiss
#5 Serperior
#6 Mega Charizard Y (Xerneas if megas don't count)
#7 Alolan Marowak

 

[RGC]

My list:
Gen 1: Dodrio
Gen 2: Mantine
Gen 3: Aggron
Gen 4: Torterra
Gen 5: Haxorus
Gen 6: Heliolisk
Gen 7: Turtonator

Honorable Mention: Lickylicky

 

[Loriania]

Gen I- Vaporen, Vulpix/ Ninetales, Lapras, Eevee
Gen II- Cyndaquil, Espeon, Umbereon
Gen III- Weather Trio, Latias, Latios
Gen IV- Piplup, Lake Guardians
Gen V- Tirtouga
Gen VI- Froakie, Amaura
Gen VII- Rowlet, Litten, Pikipek, Oricorio

 

[Sorvete]

Gen 1: Starmie
Gen 2: Hmm, tough one. Espeon, maybe.
Gen 3: Flygon
Gen 4: Drapion, Luxray, Glaceon, Yanmega
Gen 5: Hydreigon, Chandelure, Galvantula
Gen 6: Delphox
Gen 7: Alolan Raichu

 

[Myze]

Gen 1: Raichu
Gen 2: Umbreon
Gen 3: Duskull
Gen 4: Mismagius
Gen 5: Chandelure
Gen 6: Espurr
Gen 7: Decidueye

 

[TailsMK4]

Some of the later ones were tough since I'm not too familiar with Gen 6+.

Gen 1: Tie between Raichu and Ninetales, might give the nod here to Ninetales since Raichu is bad in the official games but can be done very well in fan games.
Gen 2: Azumarill, one shooting most Pokemon was a big reason I like this line. I enjoy it most when it has the Fairy typing as well, though.
Gen 3: Gardevoir, although the Swampert line was cool too.
Gen 4: Mystery Dungeon made me like Yanmega, although Gallade is also cool.
Gen 5: I guess Emolga, it's a pretty cool concept imo.
Gen 6: Purely based on team strategy building, Klefki.
Gen 7: Alolan Raichu/Ninetales, but if alternate forms don't count, I'll pick Mimikyu for the same reason as Klefki in Gen 6.

 

[Harmonie]

Gen I: Cubone
Gen II: Houndoom
Gen III: Tropius
Gen IV: Glaceon/Piplup
Gen V: Samurott/Sawsbuck
Gen VI: Fletchling/Sylveon
Gen VII: Rowlet

 

[EmTheGhost]

Gen 1: Ditto
Gen 2: Miltank
Gen 3: Shedinja
Gen 4: Arceus
Gen 5: Victini
Gen 6: Yveltal
Gen 7: Nebbycrozma Dawn Wings Necrozma

And if you don't want to count legendaries/mythicals...
Gen 1: Ditto
Gen 2: Miltank
Gen 3: Shedinja
Gen 4: Glaceon
Gen 5: Zoroark
Gen 6: Carbink
Gen 7: Uh...Most of the UBs, but those are sort of in the same 'class' as legendaries, so - I dunno, Mimikyu?

 

[Wicked3DS]

Gen I: Charizard
Gen II: Feraligatr
Gen III: Blaziken
Gen IV: Garchomp
Gen V: Galvantula
Gen VI: Greninja
Gen VII: Lycanroc Midnight

 

[LadyJirachu]

Gen 1: Pikachu ^_^
Gen 2: Pichu :3
Gen 3: JIRACHI :D
Gen 4: LUCARIO!!!! :DD
Gen 5: Keldeo~(even used it as inspiration for my white 2 name!)
Gen 6: Sylveon <3
and
Gen 7: DUSK LYCANROC FOR THE WIN BABY <3 (....He's pretty much my beloved little simba as a pokemon xD Win~ <3)

 

[Inner Rhymes]

Scyther
Suicune
Sableye
Chatot
Fetrothorn
Slurpuff
Rowlett

 

[Ninetales]

Gen 1: Ninetales (No surprise there!)
Gen 2: Espeon
Gen 3 : Beautifly
Gen 4: Lopunny
Gen 5: Liligant
Gen 6: Vivillon
Gen 7: Lunala

This was an extremely hard list to make because there's so many pokemon that I love!