Pichu, Mime Jr., Chingling, Smoochum, Wooper, Budew, Togepi, Cubchoo, Tediursa, Spritzee, Mareanie, Quilava, Braixen, Grovyle, Torchic, Hoothoot, Drillburr, Archen, Munchlax, Hakammo-o and there's probably a lot more, I happen to like tons of babies.
Most pokemon are cuter unevolved, these ones...