After reading many 810 users' experiences, 810's battery hits red after 2 dives and sometimes in the middle of the 2nd dive, and around 90+ shots with flash. I would much prefer one where I can shot for 2-3 days without opening the housing. Oly 5060/7070 for one has a battery life of 5 hrs in the worse battery draining situation, that is much desired. Canon A95 with 2500mah batteries lasts 3 days of diving (4 dives per day, 50 min dives).
I have been thinking alot about RAW. It takes around 6 seconds to record RAW (Oly 5060 experience), 9 sec on the Sony, 5 sec on the G6, shocking 9 sec on 8080, during which the camera more or less locks up. Isn't this very inconvenient underwater? I do know the advantages of shoot RAW.
As for the F10, I've decided not to get it because I want control over aperture and shutter.