If you read my preview posted here, you know I am highly biased, but that aside, you would have to love the fantastic OVF on the X20, and the every useful information it gives you right on the OVF screen. That is a fact, no bias can change.
Secondly, if you love beauty in your camera and a solid metal body of first class construction, with not even a hint of a plastic feel, the X20 can send that shiver up your leg at first glance/touch.
Those things aside, the more I use the X20 the more I am impressed with what Fuji has done to uprade this little camera in so many different areas it would take a long while to report here.
Thirdly, everyone is different, everyone has different requirements...but if you buy anything similar without holding the X20 in your hands, and then at some point in the future get a chance to do so, I can almost guarantee you will regret anything else you bought.
Regards! & whatever you do, I hope you have a fantastic trip!