Either the Nikon P600 or the Canon SX50 HS will be good choices.
Why the viewfinder provides an advantage in holding the Camera steady is because the camera is touching your head. Your head will be a better support than two outstretched arms.

A tripod will be an even better support.

A GPS has disadvantages..
The camera battery life will be cut in half when the GPS is active.
It also opens you up to providing too much information to other people.
A photo (with GPS on) of your family under the Christmas tree will contain your exact address. With free software people can also see the outside of your house. Someone can plan a robbery from the comfort of their own home.
If you are in the military you will provide the enemy your exact location.
A good gunner team can then lob a shell right in your hip pocket.

..