>>58128524
Technically, my favorite 1st stage is Mudkip, but honestly the entire Mudkip line is my favorite in the series.
However there are some few cases when I love the first stage but I dislike its evo. I think my biggest example is Chingling and Chimecho.
I love Chingling so much, it's so cute. But I really don't like Chimecho. I really hope that Chingling eventually gets a new evo with a design that is closer to Chingling's.