We had a Curt hitch on our 2003 Silverado and now on the 2012 Silverado. When we first carrier bikes on the front we used our old bike rack that held the bikes by the frame. It was a pain. The bikes swung around a lot with the wind. Also the bikes were not level which ended up having more of the bike in my vision field but the one wheel close to the ground. We now have a Swagman bike rack that supports the bikes by the wheels. This is much better. It is easier to load the bikes, easier on the bikes themselves yet they are not in my vision field.
After several thousand miles with this arrangement we are very satisfied.
As far as hitting a moose, deer or other vehicle - I think at that point bicycles would likely be the least of my worries.
Happy travelling
Peter