Clinchers make you the most independent. Patches, a spare tube and a spare (folding) tyre will fit into your pockets - you can pack them and carry them easily in a backpack, or in a bicycle pouch. Easy, cheap, quick. Even if a wheel gets smacked, you can get a clincher type one almost anywhere.
Tubeless make sense for fast downhill off road riding - you can keep them low pressure and avoid pinch flats.