I never had any trouble deciding on a main lmao. I played smash unbelievably casually (like, you have no idea how bad I was. Like, could not beat a level 9 computer every time bad. Never even heard of tech or even the concept of comboing before levels of bad. Only use dash attack and fsmash levels of bad. DIDN'T EVEN KNOW SHORT HOPPING EXISTED LEVELS OF you get my point.) for a long time (once every now and again against cpu's on a team when a friend came over) and I played sheik because idk she was fast I guess. Then, in brawl, I hated sheik and just switched to zss because they were kinda similar, right? So I played exclusively because that's generally what I do in games, and continued sucking.
Anyway, around 2 years after I stopped playing smash, I started going to this school. At this school a real life friend played smash with a bunch of different people so I joined in and they were playing PM. I picked zss because brawl. First two people out had to lose their place, so I wanted to not have to get up every time. About 10 months ago, I decided to not suck at smash and actually figure out how to be good and learned everything I could about zss. Though I really disliked the changes from brawl to PM and thought brawl was superior for a long time, I quickly realized how dumb I was for thinking that. Now that I've figured out all the tricks up ZSS' sleeve and all of the movement options in PM, I love it and her. There's some things I don't like about 3.5 for her, and we've gone through some trial separations, but we always come back together strong. As of now, I am the only ZSS player of note in the atlantic south that I know of.
TL;DR ZSS and me are like Forest and Jennay, but she doesn't have aids. (at least I'm pretty sure)