Zelda (not Sheik) was the first character I got good at. I decided to play her because she has so many weaknesses that it forced me to explore all the little quirks of her moveset in order to play well, so I developed a good understanding of a lot of the small details of the game. At some point, I decided that the main thing I was lacking was tech skill, so I picked up Fox as my second character. Now, my playtime is probably 90% Fox, 5% Zelda, 3% Pichu, and the other 2% is random.