We never recommend individual tennis string products nor do we rank them. We recommend string categories from which older players can pick a string that works best for their usage context.
The best overall tennis string category for most older players is 17 gauge soft strings, like multifilaments, synthetic guts and natural guts. All of the strings in this group are suitable for older players who are not frequent string breakers.
All tennis strings in this group are soft, powerful and playable. This is perfect combination for most older players. However, some older players — particularly singles players — may find that they need to move up to thicker 16 gauge strings.