This thread can go into tiering all the starters from the spinoffs, too, right? Because in that case, I want to include PMD starters, too.
S-tier: Treecko, Squirtle, Bulbasaur, Oshawott, Chimchar, Eevee. Vulpix.
A-tier: Rowlet, Mudkip, Charmander, Pikachu, Espeon, Umbreon, Turtwig.
B-tier: Chikorita, Cyndaquil, Totodile, Torchic, Popplio, Litten, Fennekin, Froakie, Skitty, Snivy, Machop, Cubone, Phanphy, Sninx.
C-tier: Chespin, Tepig, Meowth, Munchlax.
D-tier: Piplup, Riolu, Axew.