Eveelutions,especially Jolteon and Flareon:Not really main game related,but Jolteon was the first Rare I ever pulled from a tcg booster(It was rising rivals,if i remember correctly)
Slowpoke:I have alot in common with it,just that im not slow
Slowbro(Obvious I know)
Rhydon:Quite a big Threat in the maingame
Nidoking:Threat in early gens
Nidoqueen:^
Zapdos,Moltres and Articuno
Mew
Fearow:I dont like it competively,I just like the Pokemon itself
Porygon:Triple Beam actually is quite op in early gens
Ninetales:Competiviley useful and looks great
Wigglytuff:Cute and Disturbing at once,also quite useful in older Gens
Arcanine(even if has a stupid name [Its Latin for "Burning Dog"/"Fire Dog"Ars+Canine])
Magneton:I still get confused playing Gen 1,due to it only being electic type back then
Farfetch'D
Gengar:Looks menacing and is op
Hitmonchan:Quite Gimmicky,but can be useful
Scyther:I alwasy liked it,but in the first games it was pretty useless,beacuse it didnt learn bug attacks
Electabuzz
Magmar
Gyarados:Who doesnt like it,I think it should be Dragon Type instead of flying tho
Lapras:Not really that useful,but I remember it alot beacuse of Mystery Dungeon
Ditto:I like the concept and love the fact that it looks like a Jell-O blob
Omastar:I just like Fosill Mons
Kabutops:^
Aerodactyl:^
Dratini:Not that strong,but I find it cute
Mew:Cute + Op
Mewtu:Op