What is the best way to use a kettlebell? –> What is wrong with this question?
Who is the best kettlebell expert? –> What is wrong with this question?
Both questions above are missing the most important thing: what are your goals in training? Unless that is specified, or if you don’t have goals, those questions cannot be answered in any meaningful way. On the other hand, when we get more specific:
What is the best way to use a kettlebell for training to a GS meet that will be 6 months from now? What is the best way to use a kettlebell for fat loss? Or for conditioning?
Who is the most accomplished kettlebell sport coach? Who is the best personal trainer who uses kettlebells? Who is the best teacher of fitness kettlebelling for general populations?
Yes, all of these are still questions with many right answers but at least they have some sort of criteria. Personally, I don’t think there’s any single best way to train for general fitness, because it cannot be measured objectively. Fitness means A to someone B to someone and X to someone, and it’s all good. That’s why I like sports. You have a goal, you get results in competitions where you push to the current max, you can compare your results to other results, you know for a fact if you’re going forward or not. Simple.