Is a 4ft or 6ft leash better?

Good day everyone, I'm curious to know the opinion of fellow dog owners. When it comes to leashes, do you think a 4ft or 6ft one is better? I've heard arguments for both sides, with some saying that a 4ft leash offers better control and keeps the dog closer, while others argue that a 6ft leash gives the dog more freedom to roam and explore. What are your thoughts on this? Which one do you prefer and why? I'm looking forward to hearing your insights.