Choose based on player characteristics (defensive/strategic on the right, offensive/physical on the left) and practice playing both sides early on to develop a complete game, especially if you are right-handed.
This explanation is very useful if you are trying to figure out where you should play on the court. The coaches break down the traditional roles of right and left side players and discuss what characteristics are important for each side. They also touch on how different pairings, like a lefty and a righty, can affect side selection. Understanding these roles can really help you and your partner figure out how to best use your strengths on court.