There's no definitive answer to this question - it depends on your needs and preferences. Here are some things to consider when making your decision:
Short beds are typically easier to maneuver and park, and they're often lighter and more fuel-efficient than long beds. On the other hand, long beds offer more cargo space and can be more comfortable for taller drivers.
Think about how you'll most often be using your truck. If you're mostly driving in the city or hauling smaller loads, a short bed might be a good choice. If you frequently haul large loads or go off-roading, a long bed could be better suited to your needs.
Consider also how much space you need in the cab of your truck. Some short bed trucks have extended cabs that offer extra room for passengers or gear, while others have standard cabs that are more compact.
Ultimately, it's up to you to decide which type of bed is best for your truck. Consider your needs and preferences carefully before making your decision.