I just got the EM10 (replaced EP5) and deciding whether to take that or the Stylus 1 on a long weekend trip to Memphis (ELVIS!!!!) and Nashville. When I got the Stylus 1 I planned on that being my vacation camera, but I have been so impressed with the size and IQ of the EM10, I think I will take that along.
Most of my travel trips (have not done a safari yet) the shots tend to be in the wide to normal range. I currently have the 14-42IIR (soon to be replaced if I like it with the pancake EZ version), the 40-150II and the Panasonic 14mm/2.5 (probably to be replaced by the Olympus 25mm/1.8).
To those who have lived in/visited the two cities - is there much call for the longer lens aside from the occasional "detail" shot? I would prefer to keep the kit small and just take the 14-42 (whichever I have), the 14mm/25mm (whichever I have for low light/night) and perhaps the BCL Fisheye to play with and I don't plan on making large prints - especially of the "detail' shots.