Is often the one you have with you.
So many times we think (I also have a problem with this) that the best equipment is what makes the difference in projects. It CAN, but a lot of times, it is not the best equipment but the best talent. With technology creeping closer and getting better by the second, you can get the quality you need without wasting so much effort on focusing on the ability to have the best quality. Instead, focus on the best talent, the best effort, the best drive and motivation to make the project.
I’ve had far too many personal projects not go as far as they could or needed to because I spent too much time trying to perfect them.