thc isnt really water soluble so if your losing any its not really that much
bongs filter the weed so you dont get as much of the bad chemicals
bongs are a cleaner hit for me and i can take in more then if i smoke a bowl - so to me hit by hit a bong gets me higher
whenever i smoke a bowl its kinda harsh for me - i pretty much only smoke blunts or bongs - occasional joint and when we have nothing else we smoke my bowl