normal: snorlax been one of the best pokemon since pokemon started godly hp, high sp.def, and enough attack to do some damage
fire: arcanine has been my favorite fire type since the first pokemon episode i watched and saw it running in the field durring the into song. kinda peeved that the move pool sucks
water: omastar on my first yellow playthrough i got a kabutops second time through i got this and has been my favorite fossil pokemon ever since
electic: magneton liked it in yellow, liked it even more in gsc when steel types were added.
grass: venasaur or torterra: i have always been a fan of venasaur since i've had the most play time with it, but since playing pixelmon and getting access to newer pokemon i'm starting to like torterra
ice: cloyster godly defense (highest defense in the gen 1 games) plus when your near death just use explosion and watch the rage
fighing: heracross my go to for fighting types plus the megahorn move makes people think when sticking their psychics in against it
poison: muk dunno why but i've always liked muk
ground: steelix 2 immunitys 8 resistances and the 2nd best defense (1st being shuckle) leave it as my all time favorite pokemon, i've won many linked games (with the cord before all this wifi stuff) with one
flying: aerodactyl what more needs to be said
psychic: metagross very unique typing/stats leaves people unsure on how to deal with it properly
bug: pinsir looks awesome and gets a better move pool with every gen
rock: shuckle all hail the rage quit machine (sandstorm, wrap, toxic, and rest) easiest way to loose friends
ghost: gengar op since its invention
dragon: flygon dunno just like it more than kingdra, dragonite, salamence, and rayquaza
dark: tyranitar its big powerful looks badass and pwns everything
steel: empoleon managed to catch a piplup and even though its new to me i find myself using it a lot and liking every minute of it