Which non-starter Pokémon would you choose to be a starter trio?

[Okido]

One Grass-type, one Water-type, and one Fire-type. Which ones do you choose to create your own personal trio of starter Pokémon?
(Every kind of Pokémon is allowed — dual-types, Legendaries, Pokémon that evolve once or not at all — you can either try to keep it balanced or just have fun with it!)

Grass: Bellsprout -> Weepinbell -> Victreebel
Water: Spheal -> Sealeo -> Walrein
Fire: Magby -> Magmar -> Magmortar

 

[anzasquiddles]

Pansage, Pansear, Panpour

 

[Landfish7]

If you wanted to go with 3-stage families, I believe Roserade, Magmortar, and Kingdra have the highest BST of all non-starter Pokémon of their respective types.

 

[my imagination]

Hmmmm…. Let’s see…… OK.
Tangela
Vulpix
Clauncher

 

[airmail]

Oh, that's a tough one... I tried to keep it even as I could while thinking of Pokemon that'd just be really fun starters!
Predictably, I would be choosing Sewaddle..

Grass: Sewaddle -> Swadloon -> Leavanny
Water: Azurill -> Marill -> Azumarill
Fire: Litwick -> Lampent -> Chandelure

 

[hanecco]

I've always liked the idea of an alternative type triangle for the starters...

Fighting: Machop
Dark: Sandile
Psychic: Hatenna

Ground: Trapinch
Poison: Zubat
Grass: Bounsweet

Steel: Beldum (I also considered Klink, but most people dislike Klink, sadly)
Fairy: Togepi
Dragon: Dratini

 

[Harryghost]

I've always liked the idea of an alternative type triangle for the starters...

I second this, so...
Ground - Stunfisk
Poison - Croagunk
Grass - Ferroseed