I only have voted for "Like 'em all" xDD
Well...I can't choose. I like all legendary birds (Articuno, Zapdos, Moltres, Lugia, Ho-Oh, Latias, Latios), Mewtwo, Rayquaza, Deoxys, the three legendary dogs (Entei, Raikou, Suicune), Parukia, Diaruga, and the "secret" Pokémon (Mew, Celebi, Jirachi, and...¿Is going to be one in D/P?)
Well...I like them all !! They have awesome things !! ^_^
EDIT: OMFG !! I've forgotten Kyogre and Groudon !! ^_^U