wx1

Sony WX1 or H55 or Casio EX-H15? My budget is 15K max and I want a compact digcam for Outdoor travel purpose. I have shortlisted H55, WX1, Casio EX-H15. But now I am confused. When is H55 preferable over WX1? All I know is that WX1 is better for low light. But since the price of both is...