I currently own a Canon HF10 but I would like to exchange it for a waterproof model without loosing quality.

Which model would you recommend me. I am looking at either a Sony HDR-GWE55VW or a Panasonic HX-WA20 or maybe a third model. Or would the quality of a Olymous Tough TG-1 iHS be equally good.

Are these models better that my HF10? The Panasonic is almost half price of the Sony so if the quality is good I guess that if would be a great buy?