I just got a Panasonic ZS60 and I love it. It is not super simple, but it is a great camera. The Viewfinder works very well, it has a 30x Optical Zoom, a good flash (although in the parks that won't matter much as you are limited where you are allowed to use flash). It also has a very cool feature that if you are recording 4K video, you can extract photos from the video clip. Another nice feature is the 4K burst mode, including a pre burst mode. Basically, in the pre burst mode it will constantly sit there recording frames, then when you click the button, it will record the previous 30 and the next 30 photos, allowing you to capture moments just before you hit the shutter button.
It also offers RAW support and the battery on it lasts a decent amount of time on a single charge, I did about 90 minutes of 4K video and quite a bit of playing around, including extracting photos from about 30 minutes worth of playing the video clips on Saturday before I had to change out to another battery.
There is also the ZS100, which does have a larger sensor; however, it also doesn't have as good of a zoom, but does have a better wide angle. The ZS60 doesn't have as high of an ISO, which can be useful for dark ride and night time shots, although so far it seems to be ok for me. The ZS100 can shoot 50 frames per second while the ZS60 shoots 40 frames per second, either one is quite impressive to me.
Overall I didn't find the ZS100 with only a 10X optical zoom to be worth the extra $200 or so that it costs. But that is for me and my needs, I definitely recommend checking them out on DPReview.com