Brawl was the first Smash game I played in the no-items-1v1 style, and since I like Starfox and Metroid, I mained Wolf and had ZSS as a secondary because Samus to me just felt too far from how she plays in the games (and yet they did so well with megaman). Then Sakurai killed Wolf and here I am. I like Metroid way more than Starfox anyways, but at the time I just liked playing Wolf too much. Metroid: Zero mission was also the first Nintendo game I ever played, with the exception of occasionally being able to play other peoples' games (like my brother's Pokemon Crystal version) and I really liked the game. Before that I'd mainly just played whatever random PC games my parents bought, usually with characters they recognized like frogger and pacman (probably why I play him as a secondary, especially considering he retained his adventures in time design, which was the game my parents bought me). I also kinda fell in love with Pacman's odd playstyle, but he has an even higher learning curve than ZSS, so I've stuck with her. I play characters based on who I like and whose playstyle I like more when I play them, and ZSS has met both of those criteria better than any other character.