My Choice or Community Choice?

I plan to start writing my first story soon and I need some advice: Should I make the story go the way I want it to go or should I let the community decide? I have trouble choosing things all the time and I think it might be a good idea but I'm not sure, so could you guys help on this choice? This is because of two reason: one being their are so many characters to be put into an order in this story of mine. Two being I think its just a fun concept.
So, could you guys help, it be amazing if you could. That's all for now, so bye!