This is a tough question because “best player” can mean a lot of things. There are many different positions and roles in basketball, so picking the best overall player would be difficult. In terms of accomplishments though, I would have to say the most successful player I ever trained is Greg Gantt. I say this because he found success at every level of basketball. In high school, he won a state championship. In college, he became the all-time leading scorer for FAU. In his professional career, he has played 2 years in the G-League and 5 years overseas.