Nikon AW100, Olympus TG-1 or Sony TX20?
Have not heard of the other cameras you mentioned but the reviews for the Sony TX20 have been generally positive at http://www.squidoo.com/sony-tx20-review
They say IQ is pretty good for such a tiny camera. BTW, the TX20 is NOT for scuba divers as it is waterproof up to 5m only
|AF4_2483 Surfing the Serengeti by DaveInHouston|
from Hot Air Balloon view
|Peregrine Falcon by Psychic1|
from Best Wildlife Photo of the Week - 4