Are CamelBak or HydraPak bladders more durable long-term?

Across the reviewers we read, HydraPak is frequently called out in specialist subreddits (r/CampingGear, r/Ultralight) as the most resilient brand long-term, with users citing its reversible design and lifetime guarantee. CamelBak draws more mixed durability reports: enthusiastic long-term users on r/MTB and r/Gliding alongside leak complaints on r/CampingGear and r/trailrunning. Build quality on CamelBak appears to vary by model and production run.