I currently prefer panels for multiple reasons; however, I used rolled wire for years with success and have never had a hog or livestock bypass the rolled wire.
Here was my formula: (1) I bought pre-cut 6-foot 4X4 treated posts from Lowes and sunk them 2 foot in the ground for my corners. (2) I stretched a strand of GOOD 4-barbed wire about 3-6" shorter than the height of rolled wire I am using. (My top wire usually runs at 40-43" when complete). I then stretched a stand of that barbed wire literally right on the ground-Hogs! (3) I stretched my rolled wire with a come-a-long attaching to both T-posts and corner posts (4) I tie together the bottom barbed wire to the bottom of the rolled wire. I then remove the top stand of rolled wire with cutters and then roll the leftover vertical "fingers" of the rolled wire to the top strand of barbed wire. Basically your top and bottom wire are both now barbed-Hogs don't go under and livestock doesn't lean over.
Yes, a lot of work compared to panels and permanent so moving it is not a realistic option, but it does work and will keep out "intruders". NOTE: The Red wire in pics is left for illustration only. Once complete, that wire is gone.