Not All Tennis Balls Are Created Equal. Different tennis ball brands all have a different look and feel. Some last longer than others, or bounce higher, or can even weigh a little more.
 
For me the best playing and most durable ball is the Wilson US Open Extra Duty. If you are playing outdoors on a hard court this would be my choice.
 
My choice for runner up in this category is the Dunlop Grand Prix Extra Duty Tennis Ball. This ball lasts longer than the Wilson, however the reason this ball takes second place for me is I feel it lacks some of the feel that the Wilson offers.