Tchart
chapter 3
Comparison on 3rd base and 2nd base
2nd Base gets more balls on lefties and 3rd base gets more balls on righties. 2nd base covers first base on bunts and 3rd base charges on bunts. 2nd Base plays two bases and 3rd base covers only one base. 2nd base covers second base on balls to the shortstop or the 3rd basemen on double plays. 3rd base throws to only the second basemen on double plays.
Here are some differences on 2nd and 3rd base.
Comparison on 3rd base and 2nd base
2nd Base gets more balls on lefties and 3rd base gets more balls on righties. 2nd base covers first base on bunts and 3rd base charges on bunts. 2nd Base plays two bases and 3rd base covers only one base. 2nd base covers second base on balls to the shortstop or the 3rd basemen on double plays. 3rd base throws to only the second basemen on double plays.
Here are some differences on 2nd and 3rd base.