this is taking into account both the first and final evolutions of the pokemon. middle evolutions have broken 1000 guitars but never drawn a dime in their lives so fuck them

gen 1
the rare and only triple michaels. you could maybe argue charmander/charizard is the biggest draw, but its splitting hairs

gen 2
totodile/feraligatr. nuff said hes a hall of famer, carried the company on his back for a couple years. no real jannetty here they were all decent draws in their own right.

gen 3
mudkip is the michaels. also drew serious dimes with the online fanbase with his meme back in the day. torchic was over with the tryhards and treekos 3rd evolution had xpac heat so he was the jannetty

gen 4
turtwig is the michaels. this was the last time all 3 were draws, but if there must be a jannetty its chimchar

from here on we are entering the 'new gen' era, a lot of vanilla dimeless shitters getting main event pushes

gen 5
tepig is the michaels, but this is more for the fact the other 2 are a double janetty, i literally forgot snivy existed

gen 6.
although chespin is the better pokemon, froakie was a huge draw with the marks, he was the john cena of his time so he is the michaels. fennekin never drew a dime

gen 7
rowlet is the michaels, popplio is the jannetty unless you were a furfag

gen 8
grookey is the michaels, scorbunny is the jannetty unless you were a furfag

and the unreleased game
fuecoco is the michaels, and sprigatito is the jannetty

in conclusion

FIRE
3 michaels, 3 jannetty

WATER
4 michaels, 2 jannetty

Grass
4 michaels, 2 jannetty