Hi! Welcome to Psypokes!
While a poll is probably a good way to get to know other in the community, the Game Corner probably isn't the best place to open it; you'll probably have more luck in the
Pokemon Center, which is used to house more general Pokemon related threads.
Anyway, of the pokemon listed, Pikachu and Jigglypuff are among my favorites, and I do like Charizard. It's the Gen Wunner in me, and Charmander was my first pokemon.
Overall, my favorite pokemon is probably Gardevoir, and the Ralts line as a whole.