Charizard (if you haven's guessed it already from visiting my Profile).
Charmander and its line have always had a special meaning to me beyond nostalgia. Raising a tiny frail Charmander (with all of its disadvantages early on) into a powerhouse Charizard in Pokemon Red played a pivotal role in shaping who I am today (along with other various staples of my childhood). It was a practical example for me as a little kid in teaching me that if I persevered and had that belief in myself, I could accomplish any goal, despite how many things might be going against me. For that, it will always have a special place in my heart.