Summary of Reddit comments on knife sharpeners:

Whetstones

• Whetstones are recommended for those who want sharp knives and are willing to learn the skill.
• They are inexpensive and durable, providing a sharp edge with regular use.

Electric Sharpeners

• Chef's Choice electric sharpeners are popular choices due to their efficiency, with some considering them easier and faster than manual methods.
• Other options include the Work Sharp sharpener, which some find effective for maintaining knives, especially for those unwilling to learn stone sharpening.

Manual Sharpeners

• The Spyderco Sharpmaker is recommended for its simplicity and versatility in sharpening straight and serrated edges, popular among pocket knife enthusiasts.

Guided Angle Sharpeners

• Systems like Edge Pro provide a guiding angle for sharpening, with Lansky systems offering ease of use and effectiveness for a range of knives.
• KME is recommended as a guided sharpening system with features for precise sharpening angles and durability.

Other Options

• Accusharp was mentioned for its simplicity and affordability, although some caution about its material removal.
• The use of stones, such as the Diamond Rod Coarse or the ceramic rod, also came up as effective methods for knife maintenance.

Steering Clear of Pull-Through Sharpeners

• Some users advised against pull-through sharpeners, noting they can remove too much material and affect the knife's longevity.

General Advice

• Sharpening knives is a personal choice depending on budget, skill level, and preference.
• Proper maintenance, including regular honing and occasional sharpening, is crucial for knife care and longevity.
• Always ensure the chosen sharpener aligns with the type of knives being sharpened for the best results.

These varied opinions showcase the wide range of options available for knife sharpening, catering to different preferences, skill levels, and budget considerations.