Wartortle, Chansey, Sneasil, teddiursa, dusclops, magneton, tangela, lickitung, rydon cosmetic reasons of next evolution
Reborn shiny ponyta cause it looks too much like Rainbow dash, not a fan of the rainbow mane
Larvitar into Pupitar not a big fan of the Pupitar design but like Tyranitar
Wish tepig or Chimchar line typing wise would of been different cause 4/7 starters all have a fighting theme yes I know litten line isn't classified as fighting but it looks like a wrestler and has a moveset to support that, though I have to say I do like Infernape, Blaziken and Incineroar not entirely sold on the boar though at least in my opinion
Murkrow due to stat issues I like Haunchkrow one of my more favorite designs but I find the base stats