Weavile. Between the design and how much the one I had in Diamond carried me through Cynthia
Gengar - purple - round - goofy and silly smile :)
ALT: a purple stuffed pokemon with red eyes and a big smile
Currently mine is Ceruledge! Just love the idea of a bloodthirsty knight with blazing swords for arms! The design and colours are so sick!
Espeon. This psychic cat has been a favorite of mine since I picked up Pokemon, mainly because my first exposure to the series was through the GameCube as a little boy. Every time I play Colosseum, I keep Espeon on my team. And I've used it in plenty of other games, too.
ALT: a pink cartoon character with blue ears and a red spot on its head
HYDREIGON IS SO HIM Hydreigon is just so cool looking for a Dragon Pokemon and that type is my favorite! I'll probably never have a random team without this guy!
ALT: a cartoon drawing of a dragon with red spikes on its head
For me it's Lucario Jackals especially black backed is my favorite wild doggos and because Lucario is a bipedal jackal, this is why he is my favorite.
Luxray. I caught a Shinx in Pokemon Pearl on my first day, and I never looked back. Also 10/10 type.
Alt: A Luxray running from the back to the front of the gif in a snowy landscape with trees in the background and snow falling.
Charmander remains my fave even nearly 25 years later. I'd tried to start Red with Bulbasaur and Squirtle, but didn't click with either. Then I started using Charmander and just fell in love with the lil' scamp as we set Kanto ablaze.
It's really hard to pick my favorite as I have multiple but my favorite Pokemon, has got to be Darkrai. The design, the lore and the fact he's such a misunderstood pokemon in the world is something I love. Charmeleon is also a big fav of mine. As well as Typlosion, Dunsparce, Delibird & Hatterene.
for standard, i do adore all eeveelutions! also have a big soft spot for whimsicott, dragonite, and metagross! for legendaries/mythicals, i absolutely love jirachi and mew!