DESU I don't even know anymore. Charizard of course has childhood significance as my first starter. Mewtwo was cool AF back then. Arbok was a personal fan favorite because I like snakes. But nowadays, I've grown an appreciation for the likes of Nidoking, Dodrio, Starmie, and Aerodactyl. Gonna speak some truth here, I didn't really pay attention to most Gen 1 Pokemon beyond Charizard and Mewtwo, which is why I've grown to like newer generations: as I got older, I began to appreciate the rosters as a whole, instead of attaching solely to 1-2 Pokemon.