The most important thing in choosing a camera is YOU being comfortable with it
we can go on and on saying what camera we like and why, but it comes down to what camera you would like and why.
You have to be comfortable with your new camera, you have to like the grip, the button layout, and you have to decide how user friendly it is.
The only thing to keep in mind is that the cameras you selected are from different categories. The canon sx50 hs is pretty versatile considering the fact that you have a 50x optic zoom, the same dial SLR's provide in order to choose manual modes if you wish to control the outcome of your photos. The canon SLR on the other hand usually comes with only one lens, that will definitely not cover the 50x optic, but will have sharper pictures and usually better colour rendition.
Owning an SLR can be expensive if you will want to expand your collection! And since you will be filming indoors as well you will most likely need a lens that can perform better in low light than the kit lens usually offered on canon SLRs.
keep these things in mind when you are choosing your new camera!