Most pilots who crash in water die while still unconcious. Some wake up for a moment, after it is too late to do anything about their lungs being full of water. Cant imagine a more terrifying death.
Actually, according to the records landing in the water (crashing) is extremely survivable. Your characterization is incredibly inaccurate. You need to familiarize yourself with the NTSB records. I doubt I have ever read where anyone woke up with their lungs full of water.