>>>>I have been looking at diffeent racks for the outside of Jeeps and would like to opinion of others about what type actually work well. If I have a rack, I can haul a Deer without having to tie it to the hood<<<<
I use a flat cargo shelf type that fits into a hitch receiver on the back end. Basically angle iron, diamond grate, and 2" tube. I got a 15" longer piece of 2" tube for the tongue / center support. This allows me access (around the spare) to a truck tool box mounted on the shelf for extra "trunk space" on longer road trips. It is the kind that sits down in bed instead of across the side rails. It's held on with 4 bolts that pass right through the grate so it's no problem to switch configurations. A 60" shelf and box is the perfect width for a Jeep but you could go with a more compact 48" model with a standard length tongue for hunting or other trips offroad.
Ed